5. You want to know if amount of studying done by studentsin Greek organizations

Question

5. You want to know if amount of studying done by studentsin Greek organizations (sororities
     and fraternities) differs from the amountof time the overall student body at UT studies per

     week. Historically it is believedthat the average amount of time students in the overall

     population study is 14 hours perweek. In each of the following situations, statewhat

     statistical tool is appropriate (z,t, etc). You do not need to do the test, just tell which toolyou
     would use.

a. You take a sampleof 50 UT students in Greek organizations and find that they studyan

      average of 17 hours per week with a sample standard deviation of 4hours.

b.   You take a sample of 30UT students in Greek organizations and find they study anaverage

      of 17hours per week with a sample standard deviation of 4 hours. (Assume the

     distribution is highly skewed).

c. You take a sample of 30UT students in Greek organizations and find that they study an

      averageof 17 hours per week with a sample standard deviation of 4hours. (Assume a

      normaldistribution).

d. You take a sample of 30UT students in Greek organizations and find that they study an
      average of 17 hours per week. Assume the population standard deviation is 4 hours.

      (Assumea normal distribution).

Explanation / Answer

a) appropriate statistical tool = z b) appropriate statistical tool = t c) appropriate statistical tool = t d) appropriate statistical tool = t

Related Questions

Navigate

• Browse (All)
• Browse 5
• Subjects

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