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A survey by a national association is designed to estimate the proportion of member organizations that...

A survey by a national association is designed to estimate the proportion of member organizations that have both talent and development programs in place to drive​ human-capital management as well as the member​ organizations' mean annual employee turnover cost. A random sample of 100 member organizations reveals the​ following:

Frontline employee turnover​ cost:Upper X over bar= $12000 S=$1100 Thirty-seven member organizations have both talent and development programs in place to drive​ human-capital management.

a) Construct a 99 %confidence interval estimate for the population mean frontline employee turnover cost of member organizations. (two decimal places)

b) Construct a 99​% confidence interval estimate for the population proportion of member organizations that have both talent and development programs in place to drive​ human-capital management.

Math   Statistics-And-Probability   
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