A software company markets a new computer game with two experimental packaging designs.Design 1 is sent to 11 stores; their average sales the first month is 52 units with sample standard deviation12 units.Design 2 is sent to 6 stores; their average sales the first month is 46 units with a sample standard deviationof 10 units.It is desired to test, at the 0.01 level of significance whether the data provide sufficient evidence toconclude that the mean sales per month of the two designs are different.Let 41 and uz denote the average monthly sales for Design 1 and Design 2, respectively.The following hypotheses are being considered.Ho : H1 – 12 = 0 versus H1 : µ1 – u2 # 0.The pooled sample variance equals. (Give your answer precise to one decimal place,e.g., 12.8, 27.3, 4.0.)The value of the test statistic equals. (Give your answer precise to one decimal place,e.g., 12.8, 27.3, 4.0.)The reference distribution is the t-distribution withdegrees of freedom.The rejection region is bounded by the following critical values: +. (Give your answerprecise to three decimal places.)The decision from the test is tothe null hypothesis. (Write "reject" or "not reject").

In order to determine whether the mean sales per month of the designs are different, conduct a two…

Answered: A software company markets a new…

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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