Question: Random samples from two binomial populations yielded the following statistics: p1 = .45 n1 = 100 p2 = .40 n2 = 100 a. Calculate the

Random samples from two binomial populations yielded the following statistics:

p̂1 = .45 n1 = 100 p̂2 = .40 n2 = 100

a. Calculate the p-value of a test to determine whether we can infer that the population proportions differ.

b. Repeat part (a) increasing the sample sizes to 400.

c. Describe what happens to the p-value when the sample sizes increase.


Step by Step Solution

★★★★★

3.40 Rating (172 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

H 0 p 1 p 2 0 H 1 p 1 p 2 0 a 72 ... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

398-M-S-O-T-P (288).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Q:

The ELISA is a test to determine whether the HIV antibody is present. The test is 99.5% effective, which means that the test will come back negative if the HIV antibody is not present 99.5% of the...

Q:

We will perform another test to determine whether record highs are more likely to have occurred recently. If a record high is equally likely to occur in any year of observation, the mean year in...

Q:

We performed a randomization test to determine whether the mean number of days since an ethics professor contacted his or her mother is different from the mean number of days for a professor in a...

Q:

Random samples from two binomial populations yielded the following statistics: a. Calculate the p-value of a test to determine whether we can infer that the population proportions differ. pN 1 = .45...

Q:

You may need to use the appropriate appendix table to answer this question. This exercise is a "what-if analyses" designed to determine what happens to the test statistics and interval estimates when...

Q:

This exercise is a "what-if analysis" designed to determine what happens to the test statistics and interval estimates when elements of the statistical inference change. This problem can be solved...

Q:

Independent ttest Module IXC Independent t-test Module IX-C Grenith J. Zimmerman, Ph.D. Associate Dean for Research Copyright 2012 1 Two-Sample Problems Independent t-tests The goal of inference is...

Q:

1. You draw two simple random samples from two distinct populations and calculate the following: F1 = 23.4, 51 = 4.2, n1 = 25 E2 = 25.3, 52 = 3.9, n; = 27 Using the conservative method (no pooling...

Q:

Let n1 = 100, X1 = 40, n2 = 100, and X2 = 20. Complete parts (a) and (b) below. a. At the 0.10 level of significance, is there evidence of a significant difference between the two population...

Q:

Need help! The following results come from two independent random samples taken of two populations. sample 1' Sample 2 (a) What is the point estimate of the difference between the two population...

Q:

Purlcerson. Smith, and Traynor have operated a bookstore for a number of years as a partnership. At the beginning of 2013, capital balances were as follows: Due to a cash shortage. Purkerson invests...

Q:

Assume that the differences are normally distributed. (a) Determine di = Xi - Yi for each pair of data. (b) Compute d-bar and sd. (c) Test if d (d) Compute a 95% condence interval about the...

Q:

Negative FCF is not always bad. If FCF is negative because after - tax operating income is negative this is bad, because the company is probably experiencing operating problems. Exceptions to this...

Q:

Contrast using internal and external change agents.

Q:

You have been hired by the National Nutrition Council to study nutrition practices in the United States. In particular they want to know if their nutrition guidelines are being met by people in the...

Q:

A recent report from a study of health concerns indicated that there is strong evidence of a nation's overall health decay if the percent of obese adults exceeds 28%. In addition, if the low-income...

Q:

Big River, Inc., a major Alaskan fish processor, is attempting to determine the weight of salmon in the northwest Green River. A random sample of salmon was obtained and weighed. The data are stored...

Q:

Trigen Corp. management will invest cash flows of $1,238,006, $1,143,422, $1,487,955, $818,400, $1,239,644, and $1,617,848 in research and development over the next six years. If the appropriate...

Q:

An example of risk occurs when un investment does not keep up with prices that are increasing in the overall economy. A major cause of mortgage market meltdown in 2007 and 2008 was linked to What is...

Q:

Answer 22, 23, and 24 using the following information: Jane plans to open a new business. The equipment will cost $175,000. Jane expects the after-tax cash inflows to be $65,000 annually for 5 years,...