2. (10 pas) Suppose a storeowner assumes that all his employees are honcud; however, shortages in the cash received have been frequent in the past weeks. There is a possibility that one of the employees take the extra cash. The caner does not know whether to accuse or just let the situation pass since the shortage could be due accidental tendering of incorrect change to customers. I Sute the null and alternative hypothesis in words. b. Describe the Type I or Il error. c. Which do you think is the most serious creor? Explain. 3. (13 ) A college professor suspects the claim that the mean number of students that use library materials in a university weekly is at most 450. To check the claim. the professor checks a random sample of 100 library records and obtain the result that the mean number of students using the library materials is 458 with a standard deviation of 9. Tom whether his claim is the at 0.05 level of significance