Question
A company is doing a hypothesis test on the variation in quality within one supplier. Assume the population is normally distributed. A sample of 12
A company is doing a hypothesis test on the variation in quality within one supplier. Assume the population is normally distributed. A sample of 12 products was selected. The sample mean was 5 and the sample standard deviation was 1.56. Test to see if the standard deviation in quality is less than 1.74 by answering the following questions. Assume a significance level of 0.025.
What is the test statistic value (to 3 decimals)?
What is the critical value (to 2 decimals)?
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Business Statistics For Contemporary Decision Making
Authors: Black Ken
8th Edition
978-1118494769, 1118800842, 1118494768, 9781118800843, 978-1118749647
