Hypotheses for the difference in two population means

Reference no: EM13788943

DQ 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?

DQ 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?

Reference no: EM13788943

Questions Cloud

Benefits of the family medical and leave act : Explain in complete detail the benefits of the Family Medical and Leave Act - date it was passed, it major components and its importance in the workplace

Sampling distribution and confidence intervals : You just saw an ad on television that states the majority of the population would vote to make smoking illegal. The poll that is referenced shows 53% of those asked supported making smoking illegal.

What are at least three skills a project manager : What do you believe are some of the most important things a project manager has to handle on a daily basis. What are at least three skills a project manager will need in order to be successful

Hypotheses for the difference in two population means : 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..

Write a paper about organ donation : Write a paper about Organ Donation.

Statistical analysis technique : A client gives you a data set of 30 observed values that represent the number of gallons of gas that 30 individual Nissan Sentra owners purchased at the gas pump last month. Your client wants to know if the data set represents a normal distributio..

Qualified acquisition mortgage : Nathan Cohen, age 45, is a single taxpayer who lives at 2245 Mardel St., San Jose, CA 95130. His social security number is 351-42-1961. Nathan’s earnings and withholdings as a marketing director at a high-tech company for 2014 are: Nathan received a ..

Compare the schools of thought concerning punishment : Compare the schools of thought concerning punishment. How have their discoveries and philosophies shaped our current system

User Account

All Pages