Question

This is my (made up) problem using the difference of two proportions option. Is the proportion...

This is my (made up) problem using the difference of two proportions option.
Is the proportion of smokers greater in Borden than in Archer? In a random sample of 100 Borden residents, 59 smoke. In a random sample of 200 Archer residents, 96 smoke. Use a 10% significance level.

Set up the null and alternative hypothesis, and please interpret answer.

PLEASE DO NOT HANDWRITE AND USE STAT CRUNCH IF POSSIBLE.

Homework Answers

Answer #1

The statistical software output for this problem is :

The null and alternative hypothesis is :

H0 : p1 - p2 = 0 HA : p1 - p2 > 0

Test statistics = 1.797

P-value < 0.10

Reject the null hypothesis

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Hello Everyone! For this week’s discussion, I have chosen option 2. I would like to investigate...
Hello Everyone! For this week’s discussion, I have chosen option 2. I would like to investigate the proportion of women, aged 22-30 and whom are in the U.S. Coast Guard who have families. A study conducted in 2012 reported that 39% of women aged 22-30 whom are active duty in the U.S. Coast Guard have families. Take a random sample of 150 and determined that 42 out of 150 women had families. H0 = .39 H1> .39 Test this hypothesis...
A study is made of residents in portland and its suburbs concerning the proportion of residents...
A study is made of residents in portland and its suburbs concerning the proportion of residents who subscribe to HBO. A random sample of 88 urban residents showed that 12 subscribed, and a random sample of 97 suburban residents showed that 18 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to HBO? Use a 5% level of significance. a. State the null and alternative hypotheses ?0: ?1: b. What calculator test will you use? List the...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents who subscribe to Sporting News. A random sample of 88 urban residents showed that 13 subscribed, and a random sample of 96 suburban residents showed that 20 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to Sporting News? Use a 1% level of significance. What are we testing in this problem? paired difference single proportion difference of proportions difference of...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents...
A study is made of residents in Phoenix and its suburbs concerning the proportion of residents who subscribe to Sporting News. A random sample of n1 = 90 urban residents showed that r1 = 10 subscribed, and a random sample of n2 = 99 suburban residents showed that r2 = 18 subscribed. Does this indicate that a higher proportion of suburban residents subscribe to Sporting News? Use a 5% level of significance. What are we testing in this problem? single...
You will perform a Two Sample Hypothesis Test for Proportions. For the Hypothesis Test, make sure...
You will perform a Two Sample Hypothesis Test for Proportions. For the Hypothesis Test, make sure to report the following steps: Identify the null hypothesis, Ho, and the alternative hypothesis, Ha. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Find the critical value(s) and identify the rejection region(s). Find the appropriate standardized test statistic. If convenient, use technology. Decide whether to reject or fail to reject the null hypothesis. Interpret the decision in the context of the original...
You are conducting a study to see if the proportion of voters who prefer the Democratic...
You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is significantly smaller than 59% at a level of significance of αα = 0.10. According to your sample, 51 out of 88 potential voters prefer the Democratic candidate. For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: Ho: ? p μ  Select an answer < > =...
Your task is to pick a hypothesis to test about a population proportion (section 8.2) or...
Your task is to pick a hypothesis to test about a population proportion (section 8.2) or a population mean (section 8.3). Once you have determined your hypothesis you must go and collect the data. Make sure your sample meets the requirements of a test presented in sections 8.2 and 8.3 (such as appropriate sample size). Use a 0.05 significance level. Please clearly state the null and alternative hypotheses in symbolic form and in words. State any relevant statistics from your...
For this project, you will make decisions about how two parameters (proportions or means) compare using...
For this project, you will make decisions about how two parameters (proportions or means) compare using hypothesis tests, and you will estimate the difference between the two parameters using confidence intervals. For each confidence, report the following: the confidence interval limits rounded as directed (from StatCrunch) An interpretation of the confidence interval (e.g. "I am 95% confident ... .") Here is a template for reporting the answer for a sample confidence interval problem. Sample problem: Find a 90% confidence interval...
A study was conducted to determine the proportion of people who dream in black and white...
A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 299 people over the age of 55, 61dream in black and white, and among 287 people under the age of 25, 10 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts...
In an article in the Journal of Advertising, Weinberger and Spotts compare the use of humor...
In an article in the Journal of Advertising, Weinberger and Spotts compare the use of humor in television ads in the United States and in the United Kingdom. Suppose that independent random samples of television ads are taken in the two countries. A random sample of 400 television ads in the United Kingdom reveals that 141 use humor, while a random sample of 500 television ads in the United States reveals that 122 use humor. (a) Set up the null...