Consider the following hypotheses:Ho: p≥ 0.48HA: P < 0.48Which of the following sample information enables us to reject the nullhypothesis at a = 0.10 and at a = 0.05?Note: Round all intermediate calculations to at least 4 decimalplaces.a. x = 47; n = 127b. x = 124; n = 327c. p = 0.41; n = 54d. p=0.41; n = 444a = 0.1a = 0.05

Null Hypothesis Alternative Hypothesis This is a left-tailed test.Significance levels and .

Answered: Consider the following hypotheses: 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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Suppose that you want to perform a hypothesis test based on a simple random paired sample to compare the means of two populations. For each part, decide whether you would use the paired t-test, the pairedWilcoxon signed-rank test, or neither of these tests. Preliminary data analyses of the sample of paired differences suggest that the distribution of the paired-difference variable is a. approximately normal.b. highly skewed; the sample size is 20.c. symmetric bimodal
If you use a 0.03 level of significance in a (two-tail) hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean is 650 if you use the Z test? Which of the following decision rules is correct? A. Reject H0 if −1.88<ZSTAT<+1.88. B. Reject H0 if ZSTAT<−1.88 or ZSTAT>+1.88. C. Reject H0 if ZSTAT<−2.17 or ZSTAT>+2.17. D. Reject H0 if −2.17<ZSTAT<+2.17.
questions : "determine the null and alternative hypotheses" and the pnes below it.
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Consider the following hypothesis test: Ho: p≥ 0.65 Ha: a: P < 0.65 A sample of 200 items was selected. Compute the p-value and state your conclusion for each of the following sample results. Use a = 0.05. Round your answers to four decimal places. a. p = 0.57 p-value Conclusion: p-value - Select your answer - b. p = 0.61 p-value Conclusion: p-value c. p = 0.58 p-value - Select your answer - Conclusion: p-value - Select your answer - d. p = 0.66 p-value Conclusion: p-value - Select your answer - Ho Ho Ho Ho
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A fast-food restaurant claims that a small order of french fries contains 120 calories. A nutritionist is concerned that the true average calorie count is higher than that. The nutritionist randomly selects 35 small orders of french fries and determines their calories. The resulting sample mean is 155.6 calories, and the pp-value for the hypothesis test is 0.00093. Which of the following is a correct interpretation of the p-value? A)If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or more. B) If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or less. C)If the population mean is 120 calories, the p -value of 0.00093 is the probability of observing a sample mean of 155.6 calories or more, or a sample mean of 84.4 calories or less. .D)If the population mean is 155.6 calories, the p -value of 0.00093…
A test of the null hypothesis Ho: p = .25 gives a test statistic z = 1.6. What is the p-value if the alternative is Ha: p > .25? What is the p-value if the alternative is Ha: p < .25? What is the p-value if the alternative is Ha: p .25?

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Consider the following hypotheses: Ho: p≥ 0.48 HA: P < 0.48 Which of the following sample information enables us to reject the null hypothesis at a = 0.10 and at a = 0.05?