QNT 275T Wk 4 Case Study TRICK or TREAT to Stats Success

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QNT 275T Wk 4 Case Study TRICK or TREAT to Stats Success
QNT 275T Wk 4 Case Study TRICK or TREAT to Stats Success
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QNT 275T Wk 4 Case Study TRICK or TREAT to Stats Success

Week 4 Case Study – TRICK or TREAT to Stats Success

 

It’s Week 4 and we are totally rocking this case study thing by now! Bring it on!! Bring on some CANDY also

Well, we don’t have candy online, but we DO have a special treat for you!

 

Look in the conversations area for detailed STEP BY STEP instructional posts on how to complete each part of the case study (Q1 is posted on Wednesday, Q2 is posted on Thursday, Q3 is posted on Friday and Q4 is posted on Saturday). To access the conversations area for this assignment, click on the small icon in the upper right corner of your screen that looks like a person with a square talk balloon next to its head.

 

WHEN YOU ARE COMPLETE WITH YOUR CASE STUDY, PLEASE UPLOAD IT HERE TO THE CASE STUDY ASSIGNMENT AREA by clicking on the black “view assessment” button on this screen.

 

It is recommended that you use the case study detailed instruction posts like you would a recipe. Have excel up and running as you review each step in the detailed instructional post. Create your secret sauce of statistical success by working step by step in real time. You WILL like how this secret sauce tastes. You are welcome to post questions or thoughts in this thread, but please remember that any posts made here will NOT be counted toward your weekly discussion grade.

 

Here is this week’s case study:

 

Week 4 Case Study Data Set _ Click the 3 Dots to the Right to Open Me ————>

 

You manage human relations for your company. One of your sales managers has retired, leaving an opening in the organization. You are considering two different employees for the position. Both are highly qualified, so you have decided to evaluate their sales performance for the past year.

 

Using the week 4 data set,, create and calculate the following in Microsoft® Excel®:

 

1 Determine the range of values in which you would expect to find the average weekly sales for the entire sales force in your company 90% of the time, and calculate the following:

  • The impact of increasing the confidence level to 95%
  • The impact of increasing the sample size to 150, assuming the same mean and standard deviation, but allowing the confidence level to remain at 90%

 

2 Based on the calculated confidence interval for weekly sales on the sample of 50 reps at a 90% confidence level, calculate the following:

  • Both reps’ average weekly performance, highlighting if it is greater than the population mean

 

3 In order to decide who to promote, determine whether there is a statistically different average weekly sales between Sales Rep A and Sales Rep B by doing the following:

  • Create null and alternative hypothesis statements that would allow you to determine whether their sales performance is statistically different or not.
  • Use a significance level of .05 to conduct a t-test of independent samples to compare the average weekly sales of the two candidates.
  • Calculate the p-value.

 

4 Considering the individual you did just promoted, do the following:

  • Determine whether this person’s average weekly sales are greater than the average weekly sales for the 50 sales reps whose data you used to develop confidence intervals.
  • Create null and alternative hypothesis statements that would allow you to determine whether this person’s weekly average sales are greater than the sample of Sales Reps.
  • Use a significance level of .05 to conduct a t-test of independent samples to compare the average weekly sales of both.
  • Calculate the p-value.

 

Don’t forget to access the STEP BY STEP instructions for each of the four case study questions embedded in the conversations area for this assignment, click on the small icon in the upper right corner of your screen that looks like a person with a square talk balloon next to its head. Why do it yourself? Let’s do it TOGETHER!