Question 3: Prabjot Kaur-359, has just begun her new job as Manager on the sales force of a very competitive company. In a sample of 16 sales calls it was found that she closed the contract for an...

Question 3: Prabjot Kaur-359, has just begun her new job as Manager on the sales force of a

very competitive company. In a sample of 16 sales calls it was found that she closed

the contract for an average value of 108 dollars with a standard deviation of

12dollars. Test at 5% significance that the population mean is at least 100

dollars against the alternative that it is less than 100 dollars. Company policy

requires that new members of the sales force must exceed an average of $100

per contract during the trial employment period. (Marks 9)
a) Formulate the hypotheses
b) Calculate the test statistics
c) Can we conclude that Prabjot has met this requirement at the significance level of 95%?