b) Determine the correct hypotheses for the claim that Fiona wants to test.Note that all of the notation are as they are defined in the MATH1041 lecture notes.Ho :HA-HJ>♥Ha:HA - HJ(Enter the exact values of the numerical answers)< Fiona is the course authority for a particular university course. In this course, students submit an assignment wherethey write an essay. Each essay is marked out of 20. Fiona has two tutors Anson and Jiefei who mark the essays.Fiona randomly assigns Anson to mark approximately half of the submitted essays and assigns Jiefei to mark the rest.Fiona wants to know if Anson is marking harsher than Jiefei is. In particular, Fiona wants to test the claim that theaverage mark awarded by Anson is less than the average mark awarded by Jiefei.Fiona randomly selects some of the essays marked by Anson and computes the average mark Anson awarded thoseessays. She also randomly selects some of the essays marked by Jiefei and computes the average mark Jiefeiawarded those essays.

Fiona is the course authority for a particular university course. In this course, students submit an…

Answered: b) Determine the correct hypotheses for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Assume that adults were randomly selected for a poll. They were asked if they "favor or oppose using federal tax dollars to fund medical research using stem cells obtained from human embryos." Of those polled, 482 were in favor, 403 were opposed, and 124 were unsure. A politician claims that people don't really understand the stem cell issue and their responses to such questions are random responses equivalent to a coin toss. Exclude the 124 subjects who said that they were unsure, and use a 0.01 significance level to test the claim that the proportion of subjects who respond in favor is equal to 0.5. What does the result suggest about the politician's claim? Identify the null and alternative hypotheses for this test. Choose the correct answer below. О А. Но: р#0.5 H1:p= 0.5 В. Но: р30.5 H1:p#0.5 О с. Но: р30.5 H1: p>0.5 O D. Ho: p= 0.5 H1:p<0.5 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is (Round to two decimal places as needed.)…
The numbers of successes and the sample sizes for independent simple random samples from two populations are provided for a right-tailed test. Use a 90% confidence interval. Complete parts (a) through (d). X1 = 25, n, = 30, x2 = 17, n, = 70, a = 0.05 Click here to view a table of areas under the standard normal curve for negative values of z. Click here to view a table of areas under the standard normal curve for positive values of z. a. Determine the sample proportions. Determine the sample proportion p1. p = (Round to three decimal places as needed.) Determine the sample proportion p2. P2 = (Round to three decimal places as needed.) Determine the pooled sample proportion p,. (Round to three decimal places as needed.) b. Decide whether using the two-proportions z-procedures is appropriate. Check that the assumptions are satisfied. Select all that apply. A. The assumptions are satisfied, so using the procedures is appropriate. B. Since x, is less than 5, using the procedures is not…
Create your own questions to test different claims for the following types of hypothesis tests. Each part should include the context of the problem and the researcher’s claim. Write the scenario and claim in complete sentences.a) One Proportion Z-Testb) Two Proportion Z-Testc) One Sample T-Testd) Two Independent-Samples T-Teste) Matched Pairs T-Test
In most judicial systems, a defendant is innocent until proven guilty. An attorney defends the null hypothesis that his client, the defendant, is innocent. From the judge’s point of view, what are the implications of making the following types of errors? A Type I error A Type II error
The average life expectancy of tires produced by the Dunlop Tire Company has been 40,000 miles. Management believes that due to a new production process, the life expectancy of their tires has increased. In order to test the validity of their belief, the correct set of hypotheses is O a. Ho: H > 40,000 Ha:H S 40,000 O b. Ho:H 2 40,000 HaiH 40,000 O d. Ho: H <40,000 H3:H 2 40,000
Let’s assume the average income for all majors in the School of Engineering is $80,000. However, the chair of the Computer Science department thinks their students earn more than that. Please choose the appropriate null and alternative hypotheses if the chair wanted to test this belief. a. H0: u <=80,000 Ha: u > 80,000 b. H0: u= 80000 Ha: u not= 80000 c. H0: u >80000 Ha: u < 80000 d. H0: u >80000 Ha: < 80000 e. None of the above.
(b) Given the results from the local school, do you think the Education Department's claims are false? (Justify your answer.)
Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO, p, is less than 2 in every ten thousand. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms. A. There is not sufficient evidence to support the claim that the true proportion is greater than 2 in ten thousand. B. There is not sufficient evidence to support the claim that the true proportion is less than 2 in ten thousand. O c. There is sufficient evidence to support the claim that the true proportion is greater than 2 in ten thousand. O D. There is sufficient evidence to support the claim that the true proportion is less than 2 in ten thousand.
Laura spends an average of 1.5 hours doing herhomework. After organizing her desk, Laura thinks shewill spend less time doing her homework. She wants tothe test that claim.a) State the null hypothesis.b) State the alternative hypothesis how do I do this problem
Discuss whether the following hypothesis is a good hypothesis (i.e., they are logical, testable, refutable, and positive). Specifically say whether if it is logical, testable, refutable, and positive. If so, why? If not, why not? If atomic weapons were never invented, then there would be less anxiety in the world.
5. Use rules of inference to show that the hypotheses "Joe works hard," "If Joe works hard, then he is a dull boy," and "If Joe is a dull boy, then he will not get the job" imply the conclusion "Joe will not get the job."

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