What are the hypotheses? Suppose we are interested in testing if the average amount of sleep for college students who live oncampus is greater than the average amount of sleep that commuters get. Assume both populations arenormally distributed and values are presented in hours. Two outputs are shown below: one for the difference oftwo means test with pooled variance and one where the variances are not pooled. When considering the orderof subtraction, treat the students who live on campus as "Population 1" and the commuters as "Population 2".Use the output below to answer the following questions using a 5% level of significance.StatisticsVariableCommutersOn CampusTotalCount1825Mean StDev6.7781.1147.2401.589Test- Unequal VariancesNull hypothesisAlternative hypothesisT-Value DF P-Value1.06 410.148Test- Equal VariancesNull hypothesisAlternative hypothesisT-Value DF P-Value1.12 400.134

The objective is to set up the hypotheses in order to validate the claim that if the average amount…

Answered: What are the hypotheses?

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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What are the null and alternative hypotheses? A. H0: The two variables, x and y, are associated. Ha: The two variables, x and y, are not associated. B. H0: The variable x is dependent upon y. Ha: The variable y is dependent upon x. C. H0: The two variables, x and y, are not associated. Ha: The two variables, x and y, are associated. The P-value is (Round to three decimal places as needed.) What is the conclusion of the independence test? A. Do not reject H0. The data provide sufficient evidence of an association. B. Reject H0. The data provide sufficient evidence of an association. C. Do not reject H0. The data do not provide sufficient evidence of an association. D. Reject H0. The data do not provide sufficient evidence of an association.
Develop the analysis of variance computations for the following completely randomized design. At a = 0.05, is there a significant difference between the treatment means? 2 A 135 119 114 106 132 115 129 94 118 Treatment B 107 114 124 104 108 110 96 113 103 81 106 с 91 83 86 101 89 116 109 119 98 98 99 193.14 132.89 153.78
When a hypothesis test is being carried out, there are four different situations that can occur depending on the truthfulness of the null hypothesis. Type I error occurs when the following situation happen The null hypothesis is false, but we mistakenly fail to reject it. The null hypothesis is true, but we mistakenly reject it. The null hypothesis is false, and we reject it. The null hypothesis is true, and we fail to reject it.
If the conclusion in a hypothesis test is to fail to reject H0H0, we can conclude that there is strong evidence that the null hypothesis is true.
State the null and alternative hypotheses. The proportion of female students (1) is different than the proportion of male students (2). Ho: P₁ = P₂ H₁: P₁ P₂ Ho: P₁ P2 H₁: P₁ P₂ Ho: P₁ P₂ H₁: P₁ P₂ Ho: P₁ P2 H₁: P₁ = P₂
write about some hypotheses YOU would like to test in the real world. Imagine you were given unlimited time and funding for these endeavors, what hypotheses within the realm of social science do you think would be great to explore? For instance, personally, I would love to test a number of hypotheses in the realm of education. As one example, I’d test the effect of class size on student outcomes. This could be examined with a hypothesis test (Ch. 8), since there is already plenty of established data regarding student grades in the current sized classrooms (which, for my courses is around 45 students). Thus, I could create a study in which a smaller group, perhaps n=10 students, takes the exact same course from me, and compare the mean grade for this treatment group to the population mean of all students in those past larger classrooms. This would, in theory, provide evidence as to whether or not smaller class sizes can increase student success. Unfortunately for me and for you, I don’t…
Perform a hypothesis test at a 5% level of significance to see if the proportion of white individuals who are fatally shot by police is less than the total proportion of white individuals in the United States, which is approximately 60.1% according to the U.S. census bureau. State your null and alternative hypotheses in mathematical notation
is there enough evidence to reject the claim?
A researcher selects a sample of international students and provides them with extra support to pursue their educational goals. The graduation rates for the sample is compared to the graduation rates for international students overall. In this study design, what are the null and alternative hypotheses? answer should be in the form of 2 complete sentences.
Do sit down restaurant franchises and fast food franchises differ significantly in stock price? Specifically, is the average stock price for sit-down restaurants different from the average stock price for fast food restaurants? If sit down restaurants are considered group 1 and fast food restaurants are group 2, what are the hypotheses of this scenario?
Assume that the alternative hypothesis is true; reject the null hypothesis Assume the alternative hypothesis is false; reject the alternative hypothesis
Gender of Interviewer Man Woman Women who agree 578 314 Women who disagree 322 86 Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: The response of the subject and the gender of the subject are independent. H1: The response of the subject and the gender of the subject are dependent. B. H0: The proportions of agree/disagree responses are different for the subjects interviewed by men and the subjects interviewed by women. H1: The proportions are the same. C. H0: The proportions of agree/disagree responses are the same for the subjects interviewed by men and the subjects interviewed by women. H1: The proportions are different. Compute the test statistic. Find the critical value(s). What is the conclusion based on the hypothesis test? Fail to reject/ Reject H0. There is/is not sufficient evidence to warrant rejection of the claim that the…

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