Question: Please do within 1 hr 30 mins Question 18 (7 marks) A director of real estate sales, after several years of experience, decided that the

Please do within 1 hr 30 mins

Question 18 (7 marks) A director of real estate sales, after several years of experience, decided that the best measure of effectiveness of a salesperson is the number of sales made, rather than, say, the value of their sales. Four of her salespeople over the past year had the following results: Person A B C D Sales 12 16 10 14 At a 5% level of significance, can we conclude that the numbers of sales for each salesperson differ

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