Assume that we want to construct a confidence interval. Do one of the following, as appropriate: (a) find the critical value a/2. (b) find the critical value za/2, or (c) state that neither the normal distribution nor the t distribution applies.
The confidence level is 95%, o is not known, and the normal quantile plot of the 17 salaries in thousands of dollars) of
basketball players on a team is as shown.
z score
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.