Select the correct null hypothesis, Ho, andalternative hypothesis, Ha, in symbolic form.A chain of stores specializing in camping gear isconsidering a promotion that involves mailing outdiscount coupons. To test this promotion, thechain will first mail discount coupons to residentsin a certain area and study the proportion ofcoupoons that will actually be used. The chainwants to know if the proportion is greater than15%А. Но : и <0.15, На : и > 0.15ОВ. Но : и< 15, На : и > 15ОС. Но : р> 0.15, На, :р<0.15OD. Hо : р — 0.15, На, :р+0.15Е. Но : р<0.15, На : р > 0.15OF. Но : р > 0.15, На, :р<< 0.15

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Answered: Select the correct null hypothesis, Ho,…

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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The proportion of high school students who participate in extra-curricular activities is at least 0.64. Identify the null hypothesis and alternative hypothesis in symbolic form.
Suppose a consumer group suspects that the proportion of households that have three or more cell phones is 0.37. A cell phone company has reason to believe that the proportion is not 0.37. Before they start a big advertising campaign, they conduct a hypothesis test. Their marketing people survey 103 households with the result that 82 of the households have three or more cell phones. What is the test statistics to test the Null hypothesis H0 : p = 0.37 against the alternative, Ha : p ≠ 0.37?
1. A child dying from an accidental poisoning is a terrible incident. Is it more likely that a male child willget into poison than a female child? To find this out, data was collected that showed that out of 1830children between the ages one and four who pass away from poisoning, 1031 were males and 799 werefemales. Do the data show that there are more male children dying of poisoning than female children?Test at the 1% level.Null and alternative hypothesis (give both in symbolic form and sentence form):Test statistic and p-value (show the calculation or show what you entered into the calculator (screenshotsare ok here)):Technical conclusion, circle one: reject the null hypothesis or fail to reject the null hypothesisWhy did you choose to reject or fail to reject the null hypothesis?Nontechnical conclusion addressing the original claim:
Carter Motor Company claims that its new sedan, the Libra, will average better than 31 miles per gallon in the city. Use μ, the true average mileage of the Libra. Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim.
Select the correct null hypothesis, H0, and alternative hypothesis, Ha, in symbolic form. A chain of stores specializing in camping gear is considering a promotion that involves mailing out discount coupons. To test this promotion, the chain will first mail discount coupons to residents in a certain area and study the proportion of coupoons that will actually be used. The chain wants to know if the proportion is less than 15% A. H0:μ≤0.15, Ha:μ>0.15B. H0:p=0.15, Ha:p≠0.15C. H0:p≥0.15, Ha:p<0.15D. H0:p>0.15, Ha:p≤0.15E. H0:μ≤15, Ha:μ>15F. H0:p≤0.15, Ha:p>0.15
In a sample of 295 male job-holders, 69% said that they are satisfied with their jobs. In another sample of 128 female job-holders, 58% said that they are satisfied with their jobs. The null hypothesis is that the proportions of all female and all male job-holders who are satisfied with their jobs are equal. The alternative hypothesis is that the proportion of all female job-holders who are satisfied with their jobs is greater than the proportion of all male job-holders who are satisfied with their jobs. The significance level is 2%. What is the approximate p-value for this test? b. 0.0000 d. 0.0595 e. 0.0159 c. 0.0143 a. 0.0006
Suppose that you want to perform a hypothesis test for a population mean, µ. a. Express the null hypothesis both in words and in symbolic form.b. Express each of the three possible alternative hypotheses in words and in symbolic form.
Suppose that you want to perform a hypothesis test for a population mean, μ. a. Express the null hypothesis both in words and in symbolic form. b. Express each of the three possible alternative hypotheses in words and in symbolic form.
A group of doctors is deciding whether or not to perform an operation. Suppose the null hypothesis is that the surgical procedure will go well. Choose the statement that corresponds to a Type II error. Group of answer choices To conclude that the surgical procedure will NOT go well when in fact it WOULD go well. To conclude that the surgical procedure WILL go well, when in fact, it would NOT go well. To conclude that the surgical procedure will NOT go well. To conclude that the surgical procedure will go well.
Are Republicans just as likely as Democrats to display the American flag in front of their residence on the Fourth of July? 441 of the 695 Republicans surveyed display the flag on the Fourth of July and 521 of the 751 Democrats surveyed display the flag on the Fourth of July. What can be concluded at the αα = 0.10 level of significance? For this study, we should use The null and alternative hypotheses would be: H0:H0: (please enter a decimal) H1:H1: (Please enter a decimal) The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is αα Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The results are statistically significant at αα = 0.10, so there is sufficient evidence to conclude that the population proportion of Republicans who display the American flag in front of their residence on the Fourth of July…
A politician believes that 60% of constituents are in favor of a particular issue. She takes a sample of 100 constituents and finds that 55 favor the issue. If you were to conduct a hypothesis test of this claim, what would be the decision rule?
It has been found that 2 out of every 10 people who visit a local store purchasejuice. If we randomly select a sample of 13 visitors to the store, what is theprobability that: More than three of the visitors will purchase juice? Interpret youranswer.

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