At many golf clubs, a teaching professional provides a free 10-minute lesson to
ID: 3293382 • Letter: A
Question
At many golf clubs, a teaching professional provides a free 10-minute lesson to new customers. A golf magazine reports that golf facilities that provide these free lessons gain, on average, $2,300 in green fees, lessons, or equipment expenditures. A teaching professional believes that the average gain is less than $2,300. Complete parts a through c below. a. In order to support the claim made by the teaching professional, what null and alternative hypotheses should you test? b. Suppose you select alpha = 0.05. Interpret this value in the words of the problem. The probability that the null hypothesis is _____ when the average gain ___ $2,300 is 0.05. c. For alpha = 0.05, specify the rejection region of a large-sample test. Choose the correct answer below. A. z 1.645 C. -2.575Explanation / Answer
? = $2300 Population average
a. In order to support claim made by the teaching professional, the null
and alternative hypothesis that should be tested are
Ho : ? = 2300
Ha : ? < 2300
b. ? = 0.05
Interpretation is
The probability that the null hypothesis is rejected when the average
gain = $2300 is 0.05
c. For ? = 0.05, the rejection region of a large sample test is given by
We find from the z-tables the value of Z such that
P(z < Z) = 0.05 This is because the alternative hypothesis is Ha : ? < 2300
From the z-tables, we get the value of Z = -1.645
Answer :
E. z < -1.645
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.