Over the years, Prof. Ormiston has wondered how students\' involvement in fantas

Question

Over the years, Prof. Ormiston has wondered how students' involvement in fantasy sports affect their academic performance. Students involved in fantasy sports often ge distracted by trade conversations, draft preparation, and following their team orn gameday. Given this, Prof. Ormiston hypothesizes that involvement in fantasy sports lowers students grades in his classes (i.e., a one-sided test) To test this analysis, Prof. Ormiston knows that the average score on his exams--across all students--has historically been 82.5. From here. Prof. Ormiston polls 15 of his students who admit to playing fantasy sports. In looking at their exam scores, he finds that their average test score is 81.2 with a standard deviation of 10.4. 11.) Assuming a one-sided test. what is the alternative hypothesis if you are trying to fantasy sports decrease performance on exams (where mu represents the determine if population mean)? H1: mu -81.2 111 mu 81 2

Explanation / Answer

Here we use t test because population standard deviation unknown.

Using Minitab:

One-Sample T

Test of null Hypothesuis :mu = 82.5 vs Alternative hypothesis: mu< 82.5

95% Upper
N Mean StDev SE Mean Bound T-value P
15 81.20 10.40 2.69 85.93   -0.48 0.318

Hope this will be helpful to you.Thanks and god Bless You :-)

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.