Answered: Question 3: Prabjot Kaur-359, has just…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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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%?

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