The Rocky Mountain district sales manager of Rath Publishing Inc., a college tex

Question

The Rocky Mountain district sales manager of Rath Publishing Inc., a college textbook publishing company, claims that the sales representatives make an average of 41 sales calls per week on professors. Several reps say that this estimate is too low. To investigate, a random sample of 38 sales representatives reveals that the mean number of calls made last week was 42. The standard deviation of the sample is 3.9 calls. Using the 0.025 significance level, can we conclude that the mean number of calls per salesperson per week is more than 41? H0 : 41 H1 : > 41 1. Compute the value of the test statistic. (Round your answer to 3 decimal places.) Value of the test statistic 2. What is your decision regarding H0? H0. The mean number of calls is than 41 per week.

Explanation / Answer

H0 : 41 H1 : > 41 1

n=38

x bar = 42

Mean difference = 42-41 =1

Std dev s =3.9

std error = 3.9/rt 37 = 0.6412

t = 1/0.6412 = 1.5597

The P-Value is .063672.

The result is not significant at p < .05.

Mu cannot be greater than 41.1

Accept H0

The mean number of calls is less than 41 per week.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

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