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    21)The following data represent a random sample of 15 complaints registered with the customer service department of a store. Determine the mode complaint. defective product rude personnel messy store other defective product defective product other excessive waiting time other defective product other other rude personnel defective product other A)otherB) defective productC) messy storeD) no mode SHORT ANSWER. .
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  2.4Graphical Misrepresentations of Data 1Describe what can make a graph misleading or deceptive. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Explain what is misleading about the graphic. 1) The volume of our sales has doubled!!! A) The length of a side has doubled, but the area has been.
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  11)output below gives the mean and median for the national dropout rates of high school students in 2010 and 2012. Drop 2010       Drop 2012 N5151 MEAN28.3826.76 MEDIAN27.9425.54 Use the sample information to determine the shape of the distributions of the high school dropout rates in 2010 and 2012. MULTIPLE CHOICE.  Choose the one alternative that best.
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  MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 6) A two-pound bag of assorted candy contained 100 caramels, 83 mint patties, 93 chocolate squares, 80 nut clusters, and 79 peanut butter taffy pieces.  To create a pie chart of this data,.
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  1.6The Design of Experiments 1Describe the characteristics of an experiment. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1)What is a designed experiment? MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. 2)The variable measured in the experiment.
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  3Construct pie charts. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. The pie chart shows the percentage of votes received by each candidate in the student council presidential election. Use the pie chart to answer the question. 1) A) JimB) MattC) MingD) Ann 2) A) AnnB) BenC) MattD).
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  3.4Measures of Position and Outliers 1Determine and interpret z-scores. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1)Test scores for a statistics class had a mean of 79 with a standard deviation of 4.5. Test scores for a calculus class had a .
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  Ch. 2Organizing and Summarizing Data Answer Key 2.1Organizing Qualitative Data 1Organize qualitative data in tables. 1) ClassFrequencyRelative FrequencyPercentage Large3450.19019.0 Medium8300.45645.6 Small6450.35435.4 Total                                1820                                    1.000                                    100.0               .
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2.1Organizing Qualitative Data 1Organize qualitative data in tables. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. Round relative frequencies to thousandths. 1)Scott Tarnowski owns a pet grooming shop. His prices for grooming dogs are based on the size of the dog. His.
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  3.3Measures of Central Tendency and Dispersion from Grouped Data 1Approximate the mean and standard deviation of a variable from grouped data. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)For the following data, approximate the mean number of unused vacation days at the.
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  2.2Organizing Quantitative Data: The Popular Displays 1Organize discrete data in tables. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Construct a frequency distribution for the data. 1)A random sample of 30 high school students is selected. Each student is asked how much time he or she.
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  1.4Other Effective Sampling Methods 1Obtain stratified, systematic, and cluster samples. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Identify the type of sampling used. 1)Thirty-five math majors, 29 music majors and 26 history majors are randomly selected from 585 math majors, 279 music majors and 393 history.
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  3Construct frequency and relative frequency ogives. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Construct the requested ogive. 1)The grade point averages for 40 evening students are listed below. Construct a frequency ogive using eight classes. 2.0 3.2 1.8 2.9 0.9 4.0 3.3 2.9 3.6 0.8 3.1.
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  4Construct histograms of continuous data. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Construct the specified histogram. 1)For the data below, construct a frequency distribution and a relative frequency distribution. 2)For the data below, construct a frequency histogram and a relative frequency histogram. 3)The 30 students in.
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  1.5Bias in Sampling 1Explain the sources of bias in sampling. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1)An online newspaper conducted a survey by asking, ?Do you support the lowering of air quality standards if it could cause the death of.
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  11)data set, approximate the sample standard deviation of monthly telephone bills (in dollars). Bill (in $) Frequency 50-522 53-555 56-5812 59-6119 62-647 A) $3.11B) $58.60C) $93.12D) $9.65 12)On a recent day during the flu season, the Midtown Medical Clinic saw many patients.  Patients had their temperatures taken (in °F).  The distribution of temperatures is given below.  Determine the.
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  3Use Chebyshev?s inequality to describe any set of data. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)At a tennis tournament a statistician keeps track of every serve. The statistician reported that the mean serve speed of a particular player was 98.
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  6Draw dot plots. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Construct a dot plot for the data. 1)The local police, using radar, checked the speeds (in mph) of 30 motorists at a busy intersection.  The results are listed below.  Construct a dot plot for.
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  In general, there was a decreasing trend in women?s Boston marathon times. 2.4Graphical Misrepresentations of Data 1Describe what can make a graph misleading or deceptive. 1)A 2)A 3)A 4)The bar graph is misleading because the vertical axis starts at 60 instead of 0. This tends to indicate that the number of accidents decreased at a faster.
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  1.2Observational Studies versus Designed Experiments 1Distinguish between an observational study and an experiment. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Determine whether the study depicts an observational study or an experiment. 1)A medical researcher obtains a sample of adults suffering from diabetes. She randomly assigns 95.
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  2Create cumulative frequency and relative frequency tables. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Construct the requested frequency distribution. 1)The April precipitation amounts (in inches) for 40 cities are listed below. Construct a frequency distribution, a relative frequency distribution, a cumulative frequency distribution, and.
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  5Draw stem-and-leaf plots. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1) For the stem-and-leaf plot below, what are the maximum and minimum entries? 10 5 16 6 6 7 8 9 20 1 1 2 3 4 4 5 6 6 27 7 7 8.
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  31)Which is not a measure of dispersion? A) MeanB) Standard deviation C) VarianceD) Range 32)The _______________ is the easiest measure of dispersion to calculate. A) RangeB) Standard deviation C) VarianceD) Mean absolute deviation 33)True or False:  The variance of a population is the arithmetic average of the squared deviations about the population mean. A) TrueB) False 34)True or.
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  2Interpret percentiles. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)When results from a scholastic assessment test are sent to test-takers, the percentiles associated with their scores are also given. Suppose a test-taker scored at the 99th percentile for their verbal grade.
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  2Explain what it means for a statistic to be resistant. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)Describe the shape of the histogram. The data set: Pick-Three lottery results for 10 consecutive weeks 3 6 7 6 0 6 1 7 8.
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  1.3Simple Random Sampling 1Obtain a simple random sample. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)The government of a town needs to determine if the city?s residents will support the construction of a new town hall. The government decides to conduct a.
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  2Compute the weighted mean. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)A student receives test scores of 62, 83, and 91. The student?s  term project score is 88 and her homework score is 76. Each test is worth 20% of the.
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  3.1Measures of Central Tendency 1Determine the arithmetic mean, median, and mode of a variable from raw data. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Provide an appropriate response. 1)Find the mean, median, and mode of the following statistic students? test scores: 71 74 67 71 64.
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      11)Calculate the mean amount spent. A)38.81 million dollarsB) 19.52 million dollars C) 381.01 million dollarsD) 49.40 million dollars 11)              number of students enrolled in a physics class for the last ten semesters are listed below. Find the median number of students. 65 66 67 66 67 70 67 70 71 68 A) 67.
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  7Identify the shape of a distribution. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Construct a frequency distribution for the data using five classes. Describe the shape of the distribution. 1)The data set: Pick Three Lottery Outcomes for 10 Consecutive Weeks 3 6 7 6 0 6.
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  2.2 Organizing Quantitative Data: The Popular Displays 1Organize discrete data in tables. 2Construct histograms of discrete data. 1) 2) 3 Organize continuous data in tables. 1)A 2)A 3)A 4)A 5)A 6)A 7)A 8)A 9)A   13) a. 95-104, 105-114, 115-124, 125-134, 135-144   .
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  2Explain the various types of observational studies. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Determine what type of observational study is described. Explain. 1)Researchers wanted to determine whether there was an association between high blood pressure and the suppression of emotions. The researchers looked at.
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  3.2Measures of Dispersion 1Determine the range, standard deviation, and variance of a variable from raw data. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Compute the range for the set of data. 1) 13, 14, 15, 16, 17 A) 4B) 17C) 0.8D) 13 2) 3, 3, 3, 17,.
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  2.3Additional Displays of Quantitative Data 1Construct frequency polygons. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. 3)The grade point averages for 40 evening students are listed below. Construct a frequency polygon using eight classes. 2.0 3.2 1.8 2.9 0.9 4.0 3.3 2.9 3.6 0.8 3.1 2.4 2.4.
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  2Construct bar graphs. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. The bar graph shows the number of tickets sold each week by the garden club for their annual flower show. 1) During which week was the most number of tickets sold? A) week 4B) week 5C).
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  2Use the Empirical Rule to describe data that are bell shaped. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)At a tennis tournament a statistician keeps track of every serve. The statistician reported that the mean serve speed of a particular player.
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  4Draw time-series graphs. SHORT ANSWER.  Write the word or phrase that best completes each statement or answers the question. Use a time series plot to display the data. Comment on the trend, 2)A transportation engineer wishes to use the following data to illustrate the number of deaths from the collision of passenger cars.
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  3Explain the completely randomized, matched-pairs, and randomized block designs. MULTIPLE CHOICE.  Choose the one alternative that best completes the statement or answers the question. Provide an appropriate response. 1)A drug company wanted to test a new arthritis medication. The researchers found 700 adults aged 25-35 and randomly assigned them to two groups. The.
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  Provide an appropriate response. 11)The grade point averages for 40 evening students are listed below. Construct a frequency bar graph and a relative frequency bar graph. 12)The local police, using radar, checked the speeds (in mph) of 30 motorists in a construction area. The results are listed below. Construct a frequency bar.
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