A random sample of 51 observations was selected from a normally distributed population. The sample mean was = 88.6, and the sample variance was s2 = 38.2. Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance? Use the p-value method.© BrainMass Inc. brainmass.com June 3, 2020, 9:06 pm ad1c9bdddf
Step-by-step method for testing the hypothesis for variance under 5 step approach is discussed here. Excel template for each problem is also included. This template can be used to obtain the answers of similar problems.