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Its critical Find the appropriate critical value for constructing a confidence interval

Chapter 8, Problem R8.1

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QUESTION:

Its critical Find the appropriate critical value for constructing a confidence interval in each of the following settings. (a) Estimating a population proportion p at a 94% confidence level based on an SRS of size 125. (b) Estimating a population mean m at a 99% confidence level based on an SRS of size 58.

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QUESTION:

Its critical Find the appropriate critical value for constructing a confidence interval in each of the following settings. (a) Estimating a population proportion p at a 94% confidence level based on an SRS of size 125. (b) Estimating a population mean m at a 99% confidence level based on an SRS of size 58.

ANSWER:

Problem R8.1

Its critical: Find the appropriate critical value for constructing a confidence interval in each of the following settings.

(a) Estimating a population proportion p at a 94% confidence level based on an SRS of size 125.

(b) Estimating a population mean  at a 99% confidence level based on an SRS of size 58

                                                               Step by Step Solution

Step 1 of 3

Confidence intervals for a population proportion p are based on the sampling distribution of the sample proportion . When the conditions for inference are met, the sampling distribution of  is approximately Normal with mean and standard deviation.

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