Question

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 claim.

In a random sample of 1276 U.S. adults, 903 favor using mandatory testing to assess how well schools are educating students. In another random sample of 1112 U.S. adults taken 9 years ago, 799 favored using mandatory testing to assess how well schools are educating students. At α = 0.05, can you support the claim that the proportion of U.S. adults who favor mandatory testing to assess how well schools are educating students is less than it was 9 years ago?

Homework Answers

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
You will perform a Chi-Square test and an ANOVA test. For each hypothesis test make sure...
You will perform a Chi-Square test and an ANOVA test. For each 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...
For the following problems, (a) identify null hypothesis, alternative hypothesis, (b) determine whether it is left-tailed,...
For the following problems, (a) identify null hypothesis, alternative hypothesis, (b) determine whether it is left-tailed, right-tailed, or two-tailed, (c) find the p-value, (d) make the decision whether you reject the null hypothesis or fail to reject the null hypothesis, and e) interpret your result. 4). A medical researcher says that less than 80% of U.S. adults think that healthy children       should require to be vaccinated. In a random sample of 200 U.S. adults, 164 think that       healthy...
Hypothesis Testing Using Rejection Regions. In Exercises 7–12, (a) identify the claim and state H0 and...
Hypothesis Testing Using Rejection Regions. In Exercises 7–12, (a) identify the claim and state H0 and Ha, (b) find the critical value(s) and identify the rejection region(s), (c) find the standardized test statistic z, (d) decide whether to reject or fail to reject the null hypothesis and (e) interpret the decision in the context of the original claim. 7. Vaccination Requirement A medical researcher says that less than 80% of U.S. adults think that healthy children should be required to...
(PLEASE make answer clear) 8.4 Confidence in banks: A poll conducted in 2012 asked a random...
(PLEASE make answer clear) 8.4 Confidence in banks: A poll conducted in 2012 asked a random sample of 1276 adults in the United States how much confidence they had in banks and other financial institutions. A total of 150 adults said that they had a great deal of confidence. An economist claims that less than 14% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both =α0.01 and...
Assume that a hypothesis test of the given claim will be conducted. Use  for a...
Assume that a hypothesis test of the given claim will be conducted. Use  for a claim about a mean and  for a claim about a proportion. a. Express the claim in symbolic form. b. Identify the null hypothesis Ho. c. Identify the alternative hypothesis HA. d. Identify the test as being two-tailed, left-tailed, or right-tailed. e. Identify the type I error for this test. f. Identify the type II error for this test. g. Assume that the conclusion...
The mayor of a town has proposed a plan for the construction of an adjoining bridge....
The mayor of a town has proposed a plan for the construction of an adjoining bridge. A political study took a sample of 12001200 voters in the town and found that 63%63% of the residents favored construction. Using the data, a political strategist wants to test the claim that the percentage of residents who favor construction is not equal to 66%66%. Testing at the 0.050.05 level, is there enough evidence to support the strategist's claim? a) State the null and...
Hypothesis Test for the Difference in Two Proportions You wish to test the following claim (HaHa)...
Hypothesis Test for the Difference in Two Proportions You wish to test the following claim (HaHa) at a significance level of α=0.02α=0.02.       Ho:p1=p2Ho:p1=p2       Ha:p1>p2Ha:p1>p2 You obtain 78.6% successes in a sample of size n1=746n1=746 from the first population. You obtain 70.5% successes in a sample of size n2=509n2=509 from the second population. What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic = What is the p-value for this sample? (Report answer accurate...
For each situation, perform a hypothesis test for the population mean. Be sure to show the...
For each situation, perform a hypothesis test for the population mean. Be sure to show the null hypothesis H0 (with correct parameter), the alternative hypothesis H1, the P-level you get from ZTest, TTest, or 1-PropZTest (depending on whether you’re testing for µ or p, and whether σ is known or unknown), the result of the test (i.e. reject / do not reject H0) and the conclusion (interpret the result in English). Studies suggest that 10% of the world’s population is...
1.) One tailed test or two tailed test? You are performing a hypothesis test for the...
1.) One tailed test or two tailed test? You are performing a hypothesis test for the mean sample weight of your fellow Intro to Statistics students. For your null hypothesis , the hypothesized mean weight for the entire campus student body is 165. You have no reason to know for your alternative hypothesis whether the actual mean weight for the entire student campus body is more or less than 165. So you decide to make your alternative hypothesis as not...
Suppose you obtain a t= 2.28 from a sample of n=15 subjects. Using a two-tailed test...
Suppose you obtain a t= 2.28 from a sample of n=15 subjects. Using a two-tailed test with a=.01, report the critical value for t and decide whether to reject the null hypothesis or fail to reject the null hypothesis.