1. Johann Raphael, the manager of JRDC Computer Store is conducting a study of thenumber of customers who pay by personal check, by a credit card and by bank card.During the course of five different days, he records the following number of purchasesmade by each method:Check2822321725Credit Card3440282521Bank Card3129304327Test if there is any difference in the mean number of purchases made with each methodat the a = 0.05 level of significance.

There is no evidence to conclude that there is significant difference in mean number of purchases…

Answered: 1. Johann Raphael, the manager of JRDC…

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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2. Scores in the first and fourth (final) rounds for a sample of 20 golfers who competed in PGA tournaments are shown in the following table (Golfweek, February 14, 2009, and February 28, 2009). Suppose you would like to determine if the mean score for the first round of a PGA Tour event is significantly different than the mean score for the fourth and final round. Does the pressure of playing in the final round cause scores to go up? Or does the increased player concentration cause scores to come down? Player First Round Final Round Sleve McDichael 72 72 Onson Sweemey 68 68 Darryl Archideld 72 72 Anatoli Smorin 68 68 Rey McScriff 73 73 Glenallen Mixon 69 69 Mario McRlwain 74 74 Raul Chamgerlain 69 73 Mike Sernandez 70 73 Tony Smehrik 71 69 Player First Round Final Round Bobson Dugnutt 73 75…
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