The 95 % confidence interval for the mean number of personal computers.

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Answer 1

Question

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

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Answer 2

Question

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

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Answer 3

Question

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

Expert Solution & Answer

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Answer 4

Question

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

Expert Solution & Answer

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Answer 5

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

Answer 6

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

Answer 7

Chapter 8.1, Problem 44E

a.

To determine

To find: The 95% confidence interval for the mean number of personal computers.

Answer 8

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

Answer 9

b.

To determine

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

Answer 10

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

Answer 11

c.

To determine

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

Answer 12

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

Answer 13

d.

To determine

To find: Whether the mean number of personal computers is greater than 1.25.

Answer 14

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Answer 15

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Answer 16

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Answer 17

The 95 % confidence interval for the mean number of personal computers.

Solution Summary: The author calculates the 95% confidence interval for the mean number of personal computers.

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To find: The 95% confidence interval for the mean number of personal computers.

To explain: Whether the margin of error would be larger or smaller, if the sample size was 100 instead of 150.

To explain: Whether the margin of error would be larger or smaller, if the confidence level was 98% instead of 95% .

To find: Whether the mean number of personal computers is greater than 1.25.

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Chapter 8 Solutions