a. To find: The total number of students at the university those were not familiar with the new financial aid program.

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Answer 1

Question

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

To determine

b.

To explain:

The results of the survey are reliable or not.

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According to the 2016 Consumer Expenditure Survey, Americans spend an average of $1,124 on cellular phone service annually (U.S. Bureau of Labor Statistics website). Suppose that we wish to determine if there are differences in cellular phone expenditures by age group. Therefore, samples of 10 consumers were selected for three age groups (1834, 35- 44, 45 and older). The annual expenditure for each person in the sample is provided in the table below. Click on the datafile logo to reference the data. DATA file 35-44 969 434 1,792 1,500 1,277 1,056 1,922 1,350 18 - 34 1,355 115 1,456 2,045 1,621 994 1,937 1,200 1,567 1,390 a. Compute the mean, variance, and standard deviation for each of these three samples. Round your answers to one decimal place. 18-34 35-44 45+ 1,586 1,415 45 and Older 1,135 956 400 1,374 1,244 825 763 1,192 1,305 1,510 Mean = Variance Standard Deviation b. What observations can be made based on these data? The age group that spends the least amount on cellular phone…

c) State which sampling method used in the following scenarios i. Select the first 19 customers who enter building. ii. Select 40 students in each distriet in proportion of how many students are in each district iii. Randomly select 30 customers by assigning each customer a number, then selecting customers based on which number appears in a random numbers table. iv. Take note of every fifth car passing over a bridge.

A researcher divided subjects into two groups according to gender and then selected a fixed proportion of members from each group for his sample. What sampling method was the researcher using? A. Stratified sample. B. Simple random sample. C. Voluntary response sample. D. Cluster sample.

Answer 2

Question

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

To determine

b.

To explain:

The results of the survey are reliable or not.

Expert Solution & Answer

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Answer 3

Question

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

To determine

b.

To explain:

The results of the survey are reliable or not.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

To determine

b.

To explain:

The results of the survey are reliable or not.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 5

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

To determine

b.

To explain:

The results of the survey are reliable or not.

Answer 6

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

Answer 7

Chapter 14, Problem 60E

To determine

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

Answer 8

To determine

b.

To explain:

The results of the survey are reliable or not.

Answer 9

To determine

b.

To explain:

The results of the survey are reliable or not.

Answer 10

Expert Solution & Answer

Answer 11

Expert Solution & Answer

Answer 12

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Answer 13

Ch. 14 - As part of a sixth-grade class project the teacher...Ch. 14 - As part of a sixth-grade class project the teacher...Ch. 14 - Madison County has a population of 34,522 people....Ch. 14 - Madison County has a population of 34,522 people....Ch. 14 - A big concert was held at the Bowl. Men and women...Ch. 14 - A large jar contains an unknown number of red...Ch. 14 - You want to estimate how many fish there are in a...Ch. 14 - To estimate the population in a rookery, 4965 fur...Ch. 14 - To count whale populations, the capture is done by...Ch. 14 - The critically endangered Mauis dolphin is...

a. To find: The total number of students at the university those were not familiar with the new financial aid program.

Solution Summary: The author explains that the survey results are not reliable because each individual does not have a equal chance of being selected in the sample.

Concept explainers

Videos

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

b.

To explain:

The results of the survey are reliable or not.

Want to see the full answer?

Chapter 14 Solutions

a. To find: The total number of students at the university those were not familiar with the new financial aid program.

Solution Summary: The author explains that the survey results are not reliable because each individual does not have a equal chance of being selected in the sample.

Concept explainers

Videos

a. To find: The total number of students at the university those were not familiar with the new financial aid program.

b. To explain: The results of the survey are reliable or not.

Want to see the full answer?

Chapter 14 Solutions

a.

To find:

The total number of students at the university those were not familiar with the new financial aid program.

b.

To explain:

The results of the survey are reliable or not.