Batch 8 - May I please get help/guidance with the following homework question? Thank you for your help.

Q 24:

The average price of homes sold in the U.S. in thepast yearwas $220,000. A random sample of 81 homes soldthis yearshowed an average price of $210,000. It is known that the standard deviation of the population is $36,000. At 95% confidence test to determine if there has been a significant decrease in the average price homes.

a. State the null and alternative hypotheses to be tested.

b. Determine the value of the test statistic.

c. Compute the p-value.

d. What do you conclude?