Identify the null hypothesis, alternative hypothesis, test statistic, P-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim.

1) Various temperature measurements are recorded at different times for a particular city. The mean of 20C is obtained for 60 temperatures on 60 different days. Assuming that = 1.5C, test the claim that the population mean is 22C. Use a 0.05 significance level.

2) ) The health of employees is monitored by periodically weighing them in. A sample of 54 employees has a mean weight of 183.9 lb. Assuming that is known to be 121.2 lb, use a 0.10 significance level to test the claim that the population mean of all such employees weights is less than 200 lb