follows.

$17,5,7,11,8,29,28,24$

$($a$)$ How many degrees of freedom are present in this study?

$($b$)$ What is the point estimate $($in days$)?$

days

What is the standard deviation $($in days$)$ of Ghe sample? $($Round your answer to four decimal places.$)$

days

$($c$)$ What is the $95\%$ confidence interval $($in days$)$ for the population mean? $($Use a table or technology. Round your answers to three decimal places.$)$

days

$($d$)$ Interpret the $95\%$ confidence interval for the population mean.

Ninety$-$five percent of the data are outside of the interval.

We know that $95\%$ of the results will be in the interval.

We are $95\%$ confident all results are in this interval.

We are $95\%$ confident that the true mean is contained in the interval.