Revised MATH 533 Course Project Part - B

Running Head: Course Project - B




Course Project Part - B

Math-533 Applied Managerial

Statistics Professor; Leroy Miller

11th October, 2015

, 2
Course Project – B
Speculation A: The average (mean) sales per week exceed 41.5 per salesperson:

It has been speculated that an average sales per week exceeds 41.5 per

salesperson. From our sample data the average (mean) sales per week for the given

period was 42.34 sales. The analysis of the sample data showed that there is sufficient

evidence to support the claim that the true average sale per week is greater than 41.5 per

salesperson. This conclusion is further supported by the data which indicated (with 95%

confidence), the actual average sales per week is somewhere between 41.6 and 43.2 per

salesperson. The detail statistical analysis and methods used to support these conclusions

are provided in the appendix.


Key Statistics

Mea SE Media Mod St. Rang
N n Mean n e Dev Variance e Min Max
42.3
100 4 0.417 42 44 4.17 17.39 20 32 52


Step 1: Hypotheses

Ho: μ ≤ 41.5

Ha: μ > 41.5

Step 2: Level of Significance

α = 0.05

Z Value

Z0.05 = 1.645

Step 3& 4: Calculation

Z score Test – Single Tail (Result According to Minitab) One-Sample Z

Snap Shoot of Minitab is attached in Appendix I