Business Administration 2257 Lecture Notes - Lecture 2: Null Hypothesis, Test Statistic, Playtime

• School: Western University
• Department: Business Administration
• Course: Business Administration 2257
• Professor: Rick Appleby

Document Summary

Although, if a player is a defenseman, the more time they play does not mean they will score more points. this is because of the offensive and defensive natures of the positions. The standard critical values would not provide a good approximation to the t-critical values because the two numbers are farther apart than they should be: p-value = 0. 3664. This difference is not considered to be significant: on excel, the difference between the two sample means was 0. 031973392 and the ratio of the two sample variances was 0. 90838869. Our sample means were very close to each other, being only 0. 031973392 away from each other. We can determine that our data is good. Also our sample variance ratio was 0. 90838869, the closer to 0, the more equal our variances are. 95% guarantee: we did a z-test with the hypothesis that the two corresponding population means are equal. Nothing really significant: the results do reflect our initial conjecture.