Consider the following hypothesis test: : : A sample of 50 provided a sample mean of 14.15. The population standard deviation is . Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals). b. What is the -value (to 4 decimals)? Use the value of the test statistic rounded to 2 decimal places in your calculations. c. Using , can it be concluded that the population mean is not equal to ? - Select your answer -YesNoItem 3 Answer the next three questions using the critical value approach. d. Using , what are the critical values for the test statistic? (+ or -) (to 2 decimals) State the rejection rule: Reject if is - Select your answer -greater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 5 the lower critical value and is - Select your answer -greater than or equal togreater thanless than or equal toless thanequal tonot equal toItem 6 the upper critical value. Can it be concluded that the population mean is not equal to ? - Select your answer -YesNo