Question : Use the following table to answer the question The following table summarizes the outcomes : 2146832

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Use the following table to answer the question. The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of flying than males.

	Men	Women
Expressed a fear of heights	42	112
Did not express a fear of flying	58	98

 

15) Find the expected number of women who should express a fear of flying, if the variables are independent. Round to the nearest whole number.

A) 81

B) 50

C) 11

D) 104

Use the following table to answer the question. The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of heights than males.

	Men	Women
Expressed a fear of heights	68	109
Did not express a fear of flying	94	89

16) Find the expected number of men who should express a fear of heights, if the variables are independent. Round to the nearest whole number.

A) 93

B) 97

C) 87

D) 80

Use the following information to answer the question. Bellei Extravecchio Balsamico Tradizionale is a very expensive brand of balsamic vinegar. A twelve ounce bottle typically costs two-hundred dollars or more. In a blind taste test, a group of food experts tasted three premium balsamic vinegars, with the most expensive one being Bellei Extravecchio Balsamico Tradizionale. When asked to pick the most expensive balsamic vinegar, 92 got it right and 76 got it wrong.

18) If this group were just guessing, how many people (out of 168) would be expected to guess correctly?

A) 70

B) 84

C) 56

D) Not enough information given to calculate expected value.

The following table summarizes the results of a study to determine if job satisfaction is related to pay category.

	Satisfied	Neutral	Dissatisfied	Totals
Salaried	200	130	20	350
Hourly	405	381	174	960
Totals	605	511	194	1310

 

19) The proportion of hourly employees is about 0.733. If the variables are independent, what is the expected number of hourly employees who are dissatisfied with their jobs.

A) 0.733(174)

B) 0.733(194)

C) 0.733(20)

D) 0.733(1310)

The following table summarizes the outcomes of a study that researchers carried out to determine if females expressed a greater fear of heights than males.

	Men	Women	Totals
Expressed a fear of heights	68	109	177
Did not express a fear of flying	94	89	183
Totals	162	198	360

 

20) The proportion of those who expressed a fear of heights is about 0.492. If the variables are independent, what is the expected number of men who expressed a fear of heights?

A) 0.492(94)

B) 0.492(162)

C) 0.492(68)

D) 0.492(360)

Solve the problem.

21) Package design is an important marketing tool, especially when marketing to children. The same food was presented to children using three different packaging designs. Each child was asked to select his or her favorite. In a taste test among 243 children, 55 selected package A as tasting best, 112 selected package B as tasting best, and 76 selected package C as tasting best. If there is no difference in the products in the 3 package designs, how many children out of the 243 would you expect to pick package B as tasting best?

A) 81

B) 61

C) 121

D) 112

22) Package design is important marketing tool, especially when marketing to children. The same food was presented to children using three different packaging designs. Each child was asked to select his or her favorite. In a taste test among 267 children, 68 selected package A as tasting best, 105 selected package B as tasting best, and 94 selected package C as tasting best. If there is no difference in the products in the 3 package designs, how many children out of the 267 would you expect to pick package B as tasting best?

A) 89

B) 133

C) 105

D) 128

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

The following table summarizes the results of a study to determine if job satisfaction is related to pay category.

	Satisfied	Neutral	Dissatisfied
Salaried	200	130	20
Hourly	405	381	174

 

23) Find the expected number of salaried workers who should be satisfied with their jobs if the variables are independent. Round to the nearest hundredth.

Almas caviar is a very expensive Iranian brand of Beluga sturgeon caviar. A one pound gold-plated tin typically costs $12,000 or more. In a blind taste test, a group of food experts tasted four premium Beluga sturgeon caviars, with the most expensive one being Almas caviar. When asked to pick the most expensive caviar, 141 got it right and 79 got it wrong.

24) If this group were just guessing, how many people (out of 220) would be expected to guess correctly?