BUS 352 Week 7 Complete Work
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BUS 352 Module 7 Discussion 1
Describe when a z-test should be performed as opposed to a t-test? Which (if any) can we use all the time? Why or why not?
BUS 352 Module 7 Discussion 2
Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in two population means. The sample sizes for each are 23. He is adamant that you perform a z-test. What would you tell him? What specific explanation would you give?
BUS 352 Week 7 Problem Set 7
BUS 352 Week 7 Complete Work
Complete exercises 10.9 (parts a, b and c only), 10.11 (parts a and b only), 10.21 (parts a and b only), 10.23, 10.49
Please note: the files needed to complete the assignments are located in Course Materials (Course Add-Ons). You will need:
- For 10.9, the “Phone” file.
- For 10.11, the “Digital cameras” file.
- For 10.21, the “Measurement” file.
- For 10.23, the “Ad Pages” file.
- For 10.49, the “Digital Cameras” file.
The exercises above require the use of the t-test functions within the Data Analysis menu in Excel. Refer to Appendix E10 for instructions on using Excel for these exercises.
For problems requiring computations, please ensure that your Excel file includes the associated cell computations and/or statistics output; this information is needed in order to receive full credit on these problems.
BUS 352 Week 7 Complete Work
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