Critical values What critical value t* from Table B should be used for a confidence

Chapter 8, Problem 56

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QUESTION:

Critical values What critical value t* from Table B should be used for a confidence interval for the population mean in each of the following situations? (a) A 90% confidence interval based on n = 12 randomly selected observations (b) A 95% confidence interval from an SRS of 30 observations (c) A 99% confidence interval based on a random sample of size 58

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QUESTION:

Critical values What critical value t* from Table B should be used for a confidence interval for the population mean in each of the following situations? (a) A 90% confidence interval based on n = 12 randomly selected observations (b) A 95% confidence interval from an SRS of 30 observations (c) A 99% confidence interval based on a random sample of size 58

ANSWER:

Step 1 of 8

(a)

Given:

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