need d. please explain how u got it

ns Exercise 09.11 (Self-Test) Algorithmic Question 3 of 1 Check My Work Video Consider the following hypothesis test: Ho: u = 15 Ha: H # 15 A sample of 50 provided a sample mean of 14.29. The population standard deviation is 7. a. Compute the value of the test statistic (to 2 decimals). (If answer is negative, use minus "-" sign.) -0.72 b. What is the p-value (to 4 decimals)? -4716 c. Using @ = .05, can it be concluded that the population mean is not equal to 15? |No V Answer the next three questions using the critical value approach. d. Using @ = .05, what are the critical values for the test statistic (to 2 decimals)? + X e. State the rejection rule: Reject H o if z is |less than or equal to the lower critical value and is greater than or equal to the upper critical value. f. Can it be concluded that the population mean is not equal to 15? No Hide Feedback Partially Correct