Quality control at a soda bottler suspects that the variance in the mean volume of bottles of soda being filled by the bottler is intolerably high. In a sample of 14 bottles, the sample variance is 1.5 ml. Use this sample to test Ho: o? = 1.2 against H :0² > 1.2 at a= 0.05. a) Find the critical value or values for this test. b) Find the value of the test statistic. c) Give your decision in terms of the null hypothesis.

Quality control at a soda bottler suspects that the variance in the mean volume of bottles of soda being filled by the bottler is intolerably high. In a sample of 14 bottles, the sample variance is 1.5 ml. Use this sample to test Ho: o? = 1.2 against H :0² > 1.2 at a= 0.05. a) Find the critical value or values for this test. b) Find the value of the test statistic. c) Give your decision in terms of the null hypothesis.

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

Quality control at a soda bottler suspects that the variance in the mean volume of bottles of soda being filled
by the bottler is intolerably high. In a sample of 14 bottles, the sample variance is 1.5 ml. Use this sample
to test Ho: o? = 1.2 against H:0? > 1.2 at a = 0.05.
a) Find the critical value or values for this test.
b) Find the value of the test statistic.
c) Give your decision in terms of the null hypothesis.

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