hello, please help this probability and statistics questions with clear steps and details, thank you , I will pick up the answer if you do very clear , thank you

Walmart conducted a study in 201? on the amounts customers spent at their stores in Shenzhen on the day of New Year's Eve. The amounts were found to be normally distributed, with an average ofl,800 and a standard deviation of 240. In 2018, Walmart suspected that the average amount had increased. A hypothesis test was conducted at a signicance level of 5% to test the suspicion. A random sample of size 179 was selected with mean 1,850 and standard deviation 390. Question 1: Assume that the population standard deviation had not changed from 201?. Find the test statistic. Question 2: Based on the assumption in Question 1 above. nd the rejection region. Question 3: Based on the assumption in Question I, find the p-value. Question 4: What are the conclusions? Question 5: The assumption made in Question 1 was certainly not reasonabie. Find the test statistic again. assuming that the population standard deviation had changed from 2017. Question 6: Find the rejection region again based on the new assumption made in Question 5