Salaries of 42 college graduates who took a statistics course in college have a mean, , of . Assuming a standard deviation, , of $, construct a % confidence interval for estimating the population mean .

The 99% confidence interval for estimating the population mean μ is ($60,112.60, $68087.40).

Step-by-step explanation:

The complete question is:

Salaries of 42 college graduates who took a statistics course in college have a mean, of, $64, 100. Assuming a standard deviation, σ of $10,016 construct a 99% confidence interval for estimating the population mean μ.

Solution:

The (1 - α)% confidence interval for estimating the population mean μ is:

The critical value of z for 99% confidence interval is:

Compute the 99% confidence interval for estimating the population mean μ as follows:

Thus, the 99% confidence interval for estimating the population mean μ is ($60,112.60, $68087.40).

answer: it is d

step-by-step explanation: