Independent-dependent samples and variables

Reference no: EM13111066

1. Explain the difference between independent samples and dependent samples. Classify the following as independent or dependent samples:

a. Weights of identical twins

b. The effectiveness of two different brands of ibuprofen

c. Effect of a new training program on time taken to complete a task, measured by a "before" and "after" test

d. Test scores of a group of students on a math test and a biology test.

2. Complete the following:

a. Select a variable. Compare the mean of the variable for a sample of 30 for one group with the mean of the variable for a sample of 30 for a second group. Use a z test.

b. Select a variable. Compare the mean of the variable for a sample of 10 for one group with the mean of the variable for a sample of 10 for a second group. Use a t test.

c. Select a variable that will enable you to compare proportions of two groups. Use sample sizes of at least 30. Use the z test for proportions.

Reference no: EM13111066

Questions Cloud

What is the mean annual income : At the level of significance, is there sufficient evidence to reject the claim that the mean annual income of teachers in state of New York is less than or equal to the mean annual income of teachers in Rhode Island? Perform a one-tailed test.

Business messages must be organized based on : Good- or neutral-news messages monitor a deductive sequence where the message begins with the main idea. Business messages must be organized based on. Which of the following isn't a benefit of e-mail?

How many pairs of electrons are stripped from substrate : How many high-energy triphosphates are formed by substratelevel phosphorylation during each turn of the TCA cycle (consider the TCA cycle reactions only)? How many are formed as the result of oxidative phosphorylation? How many molecules of CO2 ar..

Determine the amount of cost in the raw materials : AC 505 Case Study I, Determine the amount of cost in the Raw Materials, Work in Process, and Finished Goods Inventory as of the date of the storm. ( Hint: You may wish to reconstruct the various schedules and statements that would have been affecte..

Independent-dependent samples and variables : Explain the difference between independent samples and dependent samples. Classify the following as independent or dependent samples:

Determine how much pv work is done : Hydrochloric acid HCl are permitted to react at atmospheric pressure and the volume change is -71.1 liters then determine how much PV work is done?

Explain why do you suppose that best buy rather than one : Explain why do you suppose that Best Buy, rather than one of Best Buy' big suppliers such as Sony or Panasonic, is considering eliminating rebates?

Propose any compromise for the present impasse : Can you propose any compromise for the present impasse? Construct as well as submit sample EFAS and IFAS tables - for the Bytes Inc. Company discussed in the case.

Find the number of representative particles : determine what mass of AgCl silver chloride can be formed from 1.03L of a 0.132M solution of AgNO 3 silver nitrate

User Account

All Pages