You have completed an independent samples ttest on the diffe

You have completed an independent samples t-test on the difference of average yield (corn) between 2 different seed types. Your decision is to reject the null hypothesis at the 0.05 level. You then calculate a 95% CI and find the “difference in corn yields is as great at least 35bushells and as much as 67bushells”. Does your CI confirm your hypothesis test decision?

Solution

The confidence interval does not contain zero that is the mean difference of average yield (corn) between 2 different seed types.

Thus, it can be stated that the null hypothesis is rejected.

Thus,

CI confirms hypothesis test decision