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Check My Work (2 remaining) Consider the following hypothesis test: Ho: u = 15 Ha: 4. - 15 A sample of 50 provided a sample mean of 14.15. The population standard deviation is 3. Enter negative value as negative number. a. Compute the value of the test statistic (to 2 decimals). b. What is the p-value (to 4 decimals)? c. Using a = 0.05, can it be concluded that the population mean is not equal to 15? Select your answer - d. What is the rejection rule using the critical value? Reject Ho if z is - Select your answer - |the lower critical value and is - Select your answer - the upper critical value. Using & = 0.05, what are the critical values for the test statistic? (+ or -) (to 2 decimals) Can it be concluded that the population mean is not equal to 15? Select your answer - Check My Work (2 remaining)