Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

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Answer 1

Question

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

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Answer 2

Question

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

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Answer 3

Question

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

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Answer 4

Question

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

Expert Solution & Answer

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Answer 5

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

Answer 6

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

Answer 7

Chapter 18, Problem 25E

a.

To determine

Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

Answer 8

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

Answer 9

b.

To determine

Give the advantage and disadvantage of the 98% confidence interval.

Answer 10

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

Answer 11

c.

To determine

Explain how the 98% confidence interval will change if the sample size is changed to 500.

Answer 12

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

Answer 13

d.

To determine

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

Answer 14

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Answer 15

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Answer 16

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Answer 17

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Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

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Explain if the confidence level will decrease from 98% to 90% then the interval will be wider or narrower.

Give the advantage and disadvantage of the 98% confidence interval.

Explain how the 98% confidence interval will change if the sample size is changed to 500.

Explain how large a sample needed to be surveyed to estimate the mean body temperature to within 0.1 degrees with 98% confidence interval.

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Chapter 18 Solutions