Do students perform better when they take an exam alone than when they take an exam in a classroomsetting? Eight students were given two tests of equal difficulty. They took one test in a solitary room andthey took the other in a room filled with other students. The results are shown below.Exam ScoresAlone82 87 71 72 68 82 70 74Classroom 84 83 73 63 67 76 65 69Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance level ofsignificance?For this study, we should use Select an answera. The null and alternative hypotheses would be:Ho: Select an answer ✓(please enter a decimal)Select an answer ✓Select an answer ✓Select an answerSelect an answerH₁: Select an answer ✓(Please enter a decimal)(please show your answer to 3 decimal places.)b. The test statistic?v=c. The p-value =(Please show your answer to 4 decimal places.)

The given data is Exam Scores Alone 82 87 71 72 68 82 70 74 Classroom 84 83 73 63 67 76 65…

Answered: a. The null and alternative 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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A professor asks her students to select which day they would prefer to have their exam: Mon, Wed, or Fri. Do students equally prefer all three options? Which test is most appropriate to conduct? One-way ANOVA Independent t-test Dependent t-test z-test Chi-sqaure
Only need answers for D and E thank you.
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Given H:u= 25, Hu=25, and P = 0.028. Do you reject or fail to reject H, at the 0.01 level of significance? do O fail to reject H O reject H O not sufficient information to decide
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Perform at-test (significance level a - 0.0s) to test your null hypothesis and compare syatelic blood pressure values measured in the sitting down and standing up position. Enter the degrees of freedom, t-values and p-values for both tests in the table below. Provide all values to 3 significant gures. Hint: Use a paired t-test. Systolic (mmHg)standing (mmHg)sitting Systolic 137 151 129 143 127 116 120 110 125 115 117 118 119 116 135 136 132 116 161 135 118 116 130 133 107 126 98 107 112 111 123 132 111 141 122 123 124 122 97 104
Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 508 randomly selected adults showed that 55% of them would erase all of their personal information online if they could. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.) --
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Stoaches are fictional creatures, sometimes mistaken for mome raths. Suppose a two-tailed ? t -test is conducted to test for a difference between the population means of adult female stoach weights and adult male stoach weights. The female sample has 6 weights, and the male sample has 12 weights. The ? t -statistic for the test is -2.69933. What is the ? p -value? (Give your answer to 4 decimal places.)

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