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Its critical Find the appropriate critical value for constructing a confidence interval
Chapter 8, Problem R8.1(choose chapter or problem)
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.
Questions & Answers
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.