According to a recent report, 44% of college student internships are unpaid. A recent survey of 60 college interns at a local university found that 37 had unpaidinternships.a. Use the five-step p-value approach to hypothesis testing and a 0.10 level of significance to determine whether the proportion of college interns that had unpaidinternships is different from 0.44.b. Assume that the study found that 31 of the 60 college interns had unpaid internships and repeat (a). Are the conclusions the same?...a. Let a be the population proportion. Determine the null hypothesis, Ho, and the alternative hypothesis, H,.Но тH,: a(Type integers or decimals. Do not round.)

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Answered: According to a recent report, 44% of…

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 average student loan debt is reported to be $25,235. A student belives that the student loan debt is higher in her area. She takes a random sample of 100 college students in her area and determines the mean to be $27,524 and the standard devition to be $6000. Is there sufficient evidence to support the student' claim at a 5% significance level? a) Determine the null and alternative hypotheses. Hai g Ha: Select an answer b) Determine the test statistic. Round to two decimals. t= c) Find the p-value. Round to 4 decimals. P-value= d) Make a decision. Reject the null hypothesis O Fail to reject the null hypothesis 15 e) Write the conclusion. O There is sufficient evidence to support the claim that student loan debt is higher than $25,235. O There is not sufficient evidence to support the claim that student loan debt is higher than $25,235. Type here to search EX #E (Put in the correct symbol and value) II (
Is the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 372 of the 563 randomly selected wildfires looked at in the south were caused by humans while 372 of the 521 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answerv Select an answerv Select an answerv (please enter a decimal) H: Select an answerv Select an answerv Select an answerv (Please enter a decimal) C. The test statistic ?v = (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? a f. Based on this, we should Select an answerv the null hypothesis. g. Thus, the final conclusion is that ... O The results are statistically insignificant conclude that the population proportion from the…
According to a recent report, 45% of college student internships are unpaid. A recent survey of 120 college interns at a local university found that 64 had unpaid internships. a. Use the five-step p-value approach to hypothesis testing and a 0.10 level of significance to determine whether the proportion of college interns that had unpaid internships is different from 0.45. b. Assume that the study found that 57 of the 120 college interns had unpaid internships and repeat (a). Are the conclusions the same? a. Let л be the population proportion. Determine the null hypothesis, Ho, and the alternative hypothesis, H₁.
It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 120 students of its 12124 students, 15 were left-handed. Does this provide enough evidence to show that students at this college have a higher percentage of left-handers than the general American population? Use a 10% level of significance.
According to a recent report, 46% of college student internships are unpaid. A recent survey of 60 college interns at a local university found that 30 had unpaid internships. a. Use the five-step p-value approach to hypothesis testing and a 0.10 level of significance to determine whether the proportion of college interns that had unpaid internships is different from 0.46. b. Assume that the study found that 38 of the 60 college interns had unpaid internships and repeat (a). Are the conclusions the same? Question content area bottom Part 1 a. Let π be the population proportion. Determine the null hypothesis, H0, and the alternative hypothesis, H1. H0: π ▼ less than< greater than or equals≥ equals= greater than> not equals≠ less than or equals≤ enter your response here H1: π ▼ less than< greater than> not equals≠ less than or equals≤ equals= greater than or equals≥ enter your response here
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According to a survey of 650 Web users from Generation Y, 338reported using the Internet to download music. a. Determine the sample proportion. b. At the 10% significance level, do the data provide sufficient evidence to conclude that a majority of Generation Y Web users use the Internet to download music? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure. a. The sample proportion is b. What are the hypotheses for the one-proportion z-test? What is the test statistic? Identify the critical value(s). What is the conclusion of the hypothesis test?
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According to a recent report, 45% of college student internships are unpaid. A recent survey of 80 college interns at a local university found that 46 had unpaid internships. a. Use the five-step p-value approach to hypothesis testing and a 0.05 level of significance to determine whether the proportion of college interns that had unpaid internships is different from 0.45. b. Assume that the study found that 42 of the 80 college interns had unpaid internships and repeat (a). Are the conclusions the same? a. Let be the population proportion. Determine the null hypothesis, Ho, and the alternative hypothesis, H₁. Ho: π = 0.45 H₁: 0.45 (Type integers or decimals. Do not round.) What is the test statistic? ZSTAT = 2.25 (Round to two decimal places as needed.) What is the p-value? The p-value is (Round to three decimal places as needed.)

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