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Statistical Reasoning for Everyday Life
Chapter 2 (Measurement in Statistics) Exam, form A
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
For problems 1 and 2, identify the variables as either qualitative or quantitative.
1) The state in which people live.
A) Qualitative
2) The size of your house.
A) Qualitative
B) Quantitative
B) Quantitative
For problems 3 and 4, identify the number as either continuous or discrete.
3) The average height of all freshmen entering college in a certain year is 68.4 inches.
A) Continuous
B) Discrete
4) The number of eggs in a goose nest is 8.
A) Continuous
B) Discrete
5) Temperatures in degrees Fahrenheit of the ocean at various depths.
A) Ratio
B) Interval
C) Ordinal
D) Nominal
6) Two statements are given below. Select the statement for which a ratio of the measurements is
meaningful. State โNeitherโ or โBothโ if appropriate.
1. Kasheta ran the race in 22.3 sec, and Louisa ran the same race in 26.4 sec.
2. Juan gets out of school at 2:45 PM, and Aito gets out of school at 3:15 PM.
A) Kasheta ran the race in 22.3 sec, and Louisa ran the same race in 26.4 sec.
B) Neither
C) Both
D) Juan gets out of school at 2:45 PM, and Aito gets out of school at 3:15 PM.
7) Select the description that most completely classifies the given variable.
Soft drink sizes: small, medium, large
A) Qualitative, nominal
B) Quantitative, ordinal
C) Quantitative, ordinal, discrete
D) Qualitative, ordinal
8) A digital scale reads 0.01 g when it is empty. Identify the potential error in the measurements made on
this scale as random or systematic.
A) Random
B) Systematic
9) Totals are determined by rounding to tenths. Identify the potential error as random or systematic.
A) Random
B) Systematic
10) The results of a poll are stated as follows: โBased on a survey of 156 randomly selected students, 90%
of the student body of 2870 students agree that no student should have to take final exams in two
consecutive exam periods.โ If 2578 students actually agree, then what is the absolute error in the
reported result?
A) 5 students
B) 287 students
C) 0.17%
D) 292 students
11) A state trooperโs radar indicates that your car is traveling 70 miles per hour; you had the cruise control
set at 65 mph. What is the relative error?
A) 5 mph
B) 7.1%
C) 7.7%
D) 0.929
13
Copyright ยฉ 2018 Pearson Education, Inc.
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12) According to a specification, the nominal length of a particular manufactured part is 5.4523 cm.
Quality control randomly selects one of the parts, and four different quality-control technicians
measure its length. Their measurements are 5.3234 cm, 5.11259 cm, 5.351 cm, and 5.45 cm. Which
measurement is the most accurate?
A) 5.3234 cm
B) 5.11259 cm
C) 5.351 cm
D) 5.45 cm
13) Compared with a metric scale that has grams as the smallest division, a scale with milligrams as the
smallest division
A) will guarantee measurements that are more accurate, but not necessarily more precise.
B) will guarantee measurements that are more precise and more accurate.
C) will guarantee measurements that are more precise, but not necessarily more accurate.
D) will not guarantee measurements that are more accurate or more precise.
14) In a survey of 500 human resource professionals, 90% said that the appearance of a rรฉsumรฉ is very
important for a good first impression. What is the actual number of respondents who said this?
A) 45 respondents.
B) 90 respondents.
C) 400 respondents.
D) 450 respondents.
15) Convert
เฌน
เฌตเฌบ
to a percent.
A) 31.25%
B) 0.3125%
C) 3.125%
D) 0.03125%
16) Convert 0.45 to a percent.
A) 45%
B) 0.0045%
C) 4.5%
D) 0.45%
17) Humanities majors spend an average of $115 per course on books. Mathematics majors spend an
average of $70 per course on books. What is the percent difference between the two amounts relative
to the amount for mathematics majors (round to the nearest percent)?
A) 64%
B) 39%
C) ๏ญ64%
D) ๏ญ39%
18) Boys spend an average of $400 on back-to-school clothes. Girls spend an average of $1032. How much
less is the boyโs average expenditure, relatively, than the girlโs expenditure (round to the nearest
percent)?
A) 61%
B) 158%
C) ๏ญ158%
D) 39%
19) Suppose that the cost of a statistics text was $50 in 1995 and is $100 in 2016. What is the โStatistics
Text Indexโ number, rounded to the nearest tenth, for the 2016 edition with the 1995 price as the
reference value?
A) 20.0
B) 200.0
C) 50.0
D) 2.0
20) A part of the Consumer Price Index (CPI) is given below:
Year
1975
1980
1985
1990
1995
2000
2005
2010
2015
CPI
53.8
82.4
107.6
130.7
152.4
172.2
195.3
218.1
237.0
Suppose a weekโs groceries in 1980 cost $70. What would these groceries cost, to the nearest dollar, 10
years later?
A) $38
B) $44
C) $111
D) $129
14
Copyright ยฉ 2018 Pearson Education, Inc.
Statistical Reasoning for Everyday Life
Chapter 2 (Measurement in Statistics) Exam, form B
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
For problems 1 and 2, identify the variable as either qualitative or quantitative.
1) A personโs height in feet.
A) Qualitative
2) A personโs political affiliation.
A) Qualitative
B) Quantitative
B) Quantitative
For problems 3 and 4, identify the number as either discrete or continuous.
3) The number of books available from Amazon.com is 227,362.
A) Discrete
B) Continuous
4) An athlete runs 100 meters in 10.7 seconds.
A) Discrete
B) Continuous
5) Determine which of the four levels of measurement is most appropriate.
Ages of survey respondents.
A) Ratio
B) Interval
C) Ordinal
D) Nominal
6) Two statements are given below. Select the statement for which a ratio of the measurements is
meaningful. State โNeitherโ or โBothโ if appropriate.
1. Kim pulled weeds at the rate of twenty weeds per minute, and Jorge pulled 18 weeds per minute.
2. Anna Lisa swam 45 yards underwater, and Marissa swam 35 yards underwater.
A) Anna Lisa swam 45 yards underwater, and Marissa swam 35 yards underwater.
B) Kim pulled weeds at the rate of twenty weeds per minute, and Jorge pulled 18 weeds per minute.
C) Neither
D) Both
7) Select the description that most completely classifies the given variable.
Preference ratings: as in โRate the item of most importance to you a 5 and that of least importance a 1โ
A) Qualitative, ordinal
B) Quantitative, ordinal
C) Quantitative, ordinal, discrete
D) Qualitative, nominal
8) A computer uses voice recognition software. Identify a misinterpreted word as a systematic or random
error.
A) Systematic
B) Random
9) Identify the potential error in recording arrival times for interstate highway trips as random or
systematic.
A) Systematic
B) Random
10) The size of an e-mail file is stated as 210 kB, but the file size is actually 220.5 kB. What is the absolute
error?
A) 5%
B) 10%
C) 10.5 kB
D) ๏ญ10.5 kB
11) The pickup time of an answering machine is set at 5 rings, but the machine picks up after 4 rings. What
is the relative error?
A) ๏ญ1 ring
C) ๏ญ25%
B) 4 to 6 rings
D) ๏ญ20%
12) The approximate value of ๏ฐ is 3.1415927. Which of the following experimentally determined values is
the most precise?
A) 3.14
B) 3.247
C) 3.412114
D) 3.3245
15
Copyright ยฉ 2018 Pearson Education, Inc.
13) Compared with a stopwatch that gives readings as _ _ . _ seconds (e.g. 23.5 seconds), a stopwatch that
gives readings as _ _ . _ _ seconds (e.g. 23.54 seconds) is
A) more accurate, but not necessarily more precise.
B) more precise and more accurate.
C) not necessarily more precise or more accurate.
D) more precise, but not necessarily more accurate.
14) In a survey of 500 human resource professionals, 80% said that the appearance of a resume is very
important for a good first impression. What is the actual number of respondents who said this?
A) 45 respondents
B) 80 respondents
C) 400 respondents
D) 450 respondents
15) Convert 13% to decimal form.
A) 0.013
B) 0.13
C) 1.3
D) 13
16) Convert 5.65 to a percent.
A) 565%
B) 5.65%
C) 0.565%
D) 56.5%
17) Research shows that 14% of 6th graders in K๏ญ6 schools have tried cigarettes and 61% of 7th graders in
8๏ญ9 or 7๏ญ9 middle schools have tried cigarettes. What is the absolute increase, to the nearest percent?
A) 77%
B) 336%
C) 436%
D) 47%
18) Research shows that 14.3% of persons 20๏ญ25 years old vote and 59.9% of persons 60๏ญ65 years old
vote. What is the absolute increase from the younger group to the older group, to the nearest point?
A) 76 points
B) 319 points
C) ๏ญ46 points
D) 46 points
19) Suppose that the cost of a statistics text was $55 in 1995 and is $90 in 2016. What is the โStatistics
Text Indexโ number, rounded to the nearest tenth, for the 1995 edition with the 2016 price as the
reference value?
A) 0.6
B) 163.6
C) 1.6
D) 61.1
20) A part of the Consumer Price Index (CPI) table is given below:
Year
1975
1980
1985
1990
1995
2000
2005
2010
2015
CPI
53.8
82.4
107.6
130.7
152.4
172.2
195.3
218.1
237.0
Suppose an actuaryโs salary was $86,000 in 1995. What would the salary have to have been in 1975 if
it had just kept up with inflation (round to the nearest $1000)?
A) $244,000
B) $30,000
C) $58,000
D) $128,000
16
Copyright ยฉ 2018 Pearson Education, Inc.
Statistical Reasoning for Everyday Life
Chapter 2 (Measurement in Statistics) Exam, form C
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
For problems 1 and 2, identify the variable as either quantitative or qualitative.
1) Brand of basketball shoes worn by a team.
A) Quantitative
2) Outcome of tossing a coin.
A) Quantitative
B) Qualitative
B) Qualitative
For problems 3 and 4, identify the number as either continuous or discrete.
3) The average speed of cars passing a busy intersection between 4:30 P.M. and 6:30 P.M. on a Friday is
32.3 mi/h.
A) Continuous
B) Discrete
4) The total number of scam emails you receive in a month is 7.
A) Continuous
B) Discrete
5) Determine which of the four levels of measurement is most appropriate.
Political party preference of survey respondents.
A) Nominal
B) Ordinal
C) Interval
D) Ratio
6) Two statements are given below. Select the statement for which a ratio of the measurements is
meaningful. State โNeitherโ or โBothโ if appropriate.
1. The fertilized grass grew 2.9 inches in a week; the unfertilized grass grew 1.8 inches in the same
week.
2. The single-stage model rocket went up 287 ft; the two-stage model rocket went up 412 ft.
A) The single-stage model rocket went up 287 ft; the two-stage model rocket went up 412 ft.
B) The fertilized grass grew 2.9 inches in a week; the unfertilized grass grew 1.8 inches in the same
week.
C) Neither
D) Both
7) Select the description that most completely classifies the given variable.
Number of wins by the NFL teams in the NFC Central division
A) Quantitative, nominal
B) Quantitative, interval
C) Qualitative, interval
D) Quantitative, ratio
8) A cook estimates one-third of a cup in a cup measuring cup marked in quarters. Assuming that the
cook knows how big 1/3 is, relative to 1/4 and 1/2, identify the potential measurement error as
systematic or random.
A) Systematic
B) Random
9) A person is always late for class. Identify the potential error as random or systematic.
A) Systematic
B) Random
10) Rather than use the two scoops of coffee recommended by the manufacturer, a coffee aficionado uses
three scoops of coffee per pot. What is the relative error?
A) โ50%
1
B) ๏ญ33 %
3
C) 50%
1
D) 33 %
3
11) A pharmacist puts 32 pills into a prescription order that calls for 30 pills. What is the absolute error?
A) ๏ญ6.7%
B) ๏ญ2 pills
C) 2 pills
17
Copyright ยฉ 2018 Pearson Education, Inc.
D) 6.7%
12) The approximate value of ๏ฐ is 3.1415927. Which of the following experimentally determined values is
the most accurate?
A) 3.14
B) 3.3245
C) 3.412114
D) 3.247
13) Which of the following statements is correct?
A) โPrecise measurementโ means the same thing as โaccurate measurement.โ
B) An accurate measurement must be precise.
C) A precise measurement must be accurate.
D) A precise measurement is not necessarily accurate.
14) In a survey of 500 human resource professionals, 70% said that the appearance of a resume is very
important for a good first impression. What is the actual number of respondents who said this?
A) 35 respondents
B) 70 respondents
C) 350 respondents
D) 400 respondents
15) Convert 1779% to decimal form.
A) 177.9
B) 17.79
C) 1.779
D) 177,900
16) Convert 0.0195% to decimal form.
A) 0.000195
B) 1.95
C) 0.195
D) 19.5
17) A professorโs checking account balance a year ago was $1470. Currently, it is $1040. Calculate the
relative percentage change to the nearest percentage point.
A) ๏ญ41%
B) 29%
D) ๏ญ29%
C) 41%
18) Research shows that 15.5% of persons 20๏ญ25 years old vote and 63.5% of persons 60๏ญ65 years old
vote. What is the relative change from the younger group to the older group, to the nearest percent?
A) ๏ญ48%
B) 76%
C) 310%
D) 48%
19) Suppose that the cost of a statistics text was $60 in 1995 and is $90 in 2016. What is the โStatistics
Text Indexโ number, rounded to the nearest tenth, for the 2016 edition with the 1995 price as the
reference value?
A) 150
B) 66.7
C) 100.0
D) 50
20) A part of the Consumer Price Index (CPI) table is given below:
Year
1975
1980
1985
1990
1995
2000
2005
2010
2015
CPI
53.8
82.4
107.6
130.7
152.4
172.2
195.3
218.1
237.0
What is the percent increase of a market basket of goods from 1975 to 1985? Round the percent to the
nearest integer.
A) 100%
B) 200%
C) 54%
D) 50%
18
Copyright ยฉ 2018 Pearson Education, Inc.
Statistical Reasoning for Everyday Life
Chapter 2 (Measurement in Statistics) Exam, form D
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
For problems 1 and 2, identify the variable as either quantitative or qualitative.
1) A playerโs number on her soccer jersey
A) Quantitative
B) Qualitative
2) The number of textbooks owned by a student
A) Quantitative
B) Qualitative
For problems 3 and 4, identify the number as either continuous or discrete.
3) The number of Direct TV customers
A) Continuous
B) Discrete
4) The voltage of the electricity in a power line
A) Continuous
B) Discrete
5) Determine which of the four levels of measurement is most appropriate.
A librarian rates fives books on an โease of readingโ scale from 1 (easy) to 10 (hard).
A) Nominal
B) Ordinal
C) Interval
D) Ratio
6) Two statements are given below. Select the statement for which a ratio of the measurements is
meaningful. State โNeitherโ or โBothโ if appropriate.
1. Jan earned a B on her test and Bob earned a C.
2. Bob wears size 9 shoes and Earl wears size 13.
A) Jan earned a B on her test and Bob earned a C.
B) Bob wears size 9 shoes and Earl wears size 13.
C) Neither
D) Both
7) Select the description that most completely classifies the given variable.
A Prostate Specific Antigen (PSA) test is useful in detecting prostate cancer in men. A sample of
blood is analyzed and the concentration of PSA is reported in nanograms per milliliter. Values less
than 4.0 are considered normal and values over 10.0 indicate that further tests are needed. The best
classification of the PSA variable is
A) Nominal
B) Qualitative, Ordinal
C) Quantitative, Continuous
D) Quantitative, Discrete
8) Amtrak passenger trains are often late in arriving at their destinations. Identify the potential error in
arrival time as systematic or random.
A) Systematic
B) Random
9) A recipe for grape jelly calls for 4 pounds of grapes. The jelly maker estimates the 4 pounds of grapes
by standing on a bathroom scale with and without the grapes. The scale only shows the weight to the
nearest pound. Identify the error in the weight as systematic or random.
A) Systematic
B) Random
10) The grape jelly maker in the previous problem actually uses 3 pounds, 12 ounces of grapes instead of
the 4 pounds called for by the recipe. What is the relative error? (There are 16 ounces in a pound.)
A) 4 ounces
B) โ4 ounces
C) 6.25%
D) โ6.25%
11) A golfer estimates that the distance to the hole for his next shot is 200 yards. The actual distance is
exactly 212 yards. What is the relative error?
A) โ12 yards
B) ๏ญ6.0%
C) 6.0%
19
Copyright ยฉ 2018 Pearson Education, Inc.
D) โ5.7%
Statistical Reasoning for Everyday Life 5th Edition Bennett Test Bank
Full Download: http://testbanklive.com/download/statistical-reasoning-for-everyday-life-5th-edition-bennett-test-bank/
12) Avogadroโs number is the number of molecules of a substance in a quantity of the substance measured
in grams equal to its atomic weight. It can only be determined by chemistry or physics experiments. It
is named after Amadeo Avogadro, who postulated in 1811 that this number was the same for all
substances. Various values for this constant have been determined experimentally. Some of them are
6.02 x 1023, 6.022 x 1023, and 6.02214199 x 1023. The 1023 means that you have to move the decimal
point 23 places to the right. Which of these values is the most accurate?
A) 6.02 x 1023
B) 6.022 x 1023
C) 6.02214199 x 1023
D) We canโt tell.
13) Compared to a scale that measures your weight to tenths of a pound, a scale that measures your weight
to the nearest ounce is
A) more precise and more accurate.
B) less precise, but may be more accurate.
C) more precise, but may be less accurate.
D) less precise and less accurate.
14) In a survey of 500 human resource professionals, 60% said that the appearance of a resume is very
important for a good first impression. What is the actual number of respondents who said this?
A) 30 respondents
B) 60 respondents
C) 300 respondents
D) 360 respondents
15) Convert 112.463% to decimal form.
A) 1.12463
B) 11.2463
C) 1124.63
D) 11246.3
16) Convert 0.1963 to a percent.
A) 0.001963%
B) 0.01963%
C) 1.963%
D) 19.63%
17) After a year of weight training, Haroldโs weight changed from 172 pounds to 185 pounds. What is his
percent increase in weight to the nearest tenth?
A) 13.0 pounds
B) 8.0%
C) 7.6%
D) 7.0%
18) On September 28, 2012, the average price of a gallon of regular unleaded gas in Eau Claire,
Wisconsin, was $3.89 while in Appleton, Wisconsin, the average price was $3.74. What is the
percentage difference in price in Appleton (to the nearest tenth of a percent) relative to the price in Eau
Claire?
A) ๏ญ3.9%
B) 3.9%
C) โ4.0%
D) 4.0%
19) Suppose that the cost of a statistics text was $45 in 1995 and $76 in 2016. What is the Statistics Text
Index number, rounded to the nearest tenth, for the 1995 edition with the 2016 price as the reference
value?
A) 0.6
B) 5.9
C) 59.2
D) 168.9
20) A part of the Consumer Price Index (CPI) table is given below:
Year
1975
1980
1985
1990
1995
2000
2005
2010
2015
CPI
53.8
82.4
107.6
130.7
152.4
172.2
195.3
218.1
237.0
Suppose that a statisticianโs salary was $64,000 in 1985. What would the salary have to be in 2005 to
keep up with inflation (rounded to the nearest $1000)?
A) $125,000
B) $69,000
C) $116,000
D) $35,000
20
Copyright ยฉ 2018 Pearson Education, Inc.
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