Below data is the level of polyunsaturated fatty acid in a s

Below data is the level of polyunsaturated fatty acid in a sample of six packages of margarine.

16.8 17.2 17.4 16.9 16.5 17.1

We want to test the hypothesis for sigma=1. Use a two-sided alternative hypothesis and significance level of 0.01.

What is the assumption for this test. Check if the assumption is satisfied using minitab. (Type in the data in minitab, then Select Graph -> Probability Plot -> Single . Attach your graph. )

Perform hypothesis test using the 7 procedures.

Solution