You want to buy a washing machine, and a salesperson tells you that the mean repair costs for Model A and Model B are equal. You research the repair costs. The mean repair cost of 28 Model A washing machines is $205. Assume the population standard deviation is $15. The mean repair cost of 29 Model B washing machines is $219. Assume the population standard deviation is $20. At a = 0.01, can you reject the salesperson's claim? Assume the samples are random independent, and the populations are normally distributed. Complete parts (a) through (e). (a) Identify the claim and state Ho and Ha. What is the claim