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[DOC File]National Chengchi University
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C 107. A null hypothesis was rejected at the 0.10 level of significance. It the level of significance were changed to 0.05 and the same sample results were obtained, what decision should be made? M A. reject the null hypothesis. App B. do not reject the null hypothesis. C. cannot be determined without further information. D. all of the above. B ...
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[DOC File]CHAPTER 9—HYPOTHESIS TESTS
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a. Compute the sample mean and the standard deviation. b. State the null and alternative hypotheses. c. Using the critical value approach, test the hypotheses at the 10% level of significance. d. Using the p-value approach, test the hypotheses at the 10% level of significance. ANS: a. = 162.5 s = 15 b.
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[DOC File]Exam 3 Practice Questions
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2. Suppose you conduct a significance test for the population proportion and your p-value is 0.184. Given a 0.10 level of significance, which of the following should be your conclusion? a) accept HO. b) accept HA. c) Fail to reject HA. d) Fail to reject HO. e) Reject Ho. 3.
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[DOC File]Columbia University in the City of New York
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14. If a 0.10 level of significance is used in a two-tailed hypothesis test, what will be your decision rule in terms of z for rejecting a null hypothesis that the population mean is 500? 15. If a 0.01 level of significance were used in a two-tailed hypothesis test, what would be your decision rule in terms of z for rejecting H0: ? 16.
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[DOC File]Columbia University in the City of New York
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Department Processing Time (In Seconds) Accounting 9 3 8 7 12 Research 4 13 10 9 9 6 Choosing a level of significance of 0.05 (or 95% confidence), use statistical inference (confidence intervals or tests of hypotheses) to draw conclusions about each of the following: Average processing time for all jobs in the accounting department.
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[DOC File]Economics 200 Course Outline
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Identify the rejection point or points for the hypothesis tested in part (a) at the 0.10 level of significance. Determine whether the null hypothesis is rejected or not rejected at the 0.10 significance level. Show that the 90% Confidence Interval Approach for this hypothesis test provides the same conclusion.
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[DOCX File]JustAnswer
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Apr 06, 2011 · If you use a 0.10 level of significance in a (two tailed) Hypothesis test, what is your decision rule for rejecting null hypotheses that the population mean is 500 if you use the Z test? Critical values at 0.10 significance level = ±1.64485. So, reject null hypothesis if z1.64485.
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[DOC File]Practice Final Examination
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Using a 1% level of significance, is there sufficient evidence for Q-Mart to conclude that customers who use the Q-Mart card charge, on average, more than those who use another charge card? Explain your answer. Suppose that you were asked to test H0: = 10 versus Ha: > 10 at the = 0.05 significance level and with a sample of size n = 10.
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[DOC File]Test of Hypothesis One sample Test
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10. The Genetics and IVF Institute conducted a clinical trial of the YSORT method designed to increase the probability of conceiving a boy. To date out of 51 births, which used this YSORT method, 39 of them were boys. Test at the 0.01 significance level the claim that this method gives a couple greater than a 50% chance of having a boy. 11.
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[DOC File]AP Statistics - Math For Life
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(d) There is significance evidence at the 10% level, but not at the 1% significance level, of a relationship between taking vitamin C and catching fewer colds. (e) There is not sufficient evidence at the 10% level of a relationship between taking vitamin C and catching fewer colds. 3.
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10 level of significance