gm Hello Class, Please complete the following Problems; WW 1. The mean volume of sales for a sample of 100 sales representatives is $25,350 per month. The sample standard deviation is $7,490. The vice president for sales would like to know whether this result is signicantly different from $24,000 at a 95 percent condence level. Set up the appropriate null and alternative hypotheses, and perform the appropriate statistical test. 2. Larry Bomser has been asked to evaluate sizes of tire inventories for retail outlets of a major tire manufacturer. From a sample of 120 stores, he has found a mean of 310 tires. The industry average is 325. If the standard deviation for the sample was 72, would you say that the inventory level maintained by this manufacturer is significantly different from the industry norm? Explain why 3. Twenty graduate students in business were asked how many credit hours they were taking in the current quarter. Their responses are shown as follows Studen Stude t nt Numbe Credit Numb Credit 1- Hours er Hours 1 2 11 6 2 7 12 5 3 9 13 9 4 9 14 13 5 8 15 10 6 11 16 6 7 6 17 9 8 8 18 6 9 12 19 9 10 1 1 20 10 Determine the mean, median, and mode for this sample of data. Write a sentence explaining what each means