5If the absolute value of the computed testvalue is greater than the absolute value of thecritical value, what is the correct action to bedone?O Reject the null hypothesisO Accept the alternative hypothesisO Accept the null hypothesisO Fail to reject the null hypothesis

If the absolute value of the computed test value is greater than the absolute value of the critical…

Answered: 5 If the absolute value of the computed…

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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Identify the null and alternative hypothesis(in symbolic and sentence form), test statistic, P-value(or critical values), conclusion about the null hypothesis, and final conclusion that addresses the original claim(Don’t just say Reject the null hypothesis or fail to reject the null hypothesis). If you used the calculator, identify everything mentioned above in addition to which calculator functions and inputs for each field were used. A researcher wishes to determine whether the blood pressure of vegetarians is, on average, lower than the blood pressure of nonvegetarians. Independent simple random samples of 85 vegetarians and 75 nonvegetarians yielded the following sample statistics for systolic blood pressure. Test the claim that vegetarians have lower blood pressure than non vegetarians. Use a 0.05 level of significance. Vegetarians Non Vegetarians n=85 n=75 Mean=124.1mmHg Mean=138.7mmHg St dev=38.7mmHg St dev=39.2mmHg
If the p-value is very large (say close to 1), then it is likely that we will reject the null hypothesis. True False
A type I error could be committed even if the null hypothesis is false True False
1- Type II error occurs when a false null hypothesis is not rejected Select one: True False
A scientist has read that the mean birth weight, u, of babies born at full term is 7.5 pounds. The scientist, believing that u is different from this value, plans to perform a statistical test. She selects a random sample of birth weights of babies born at full term and finds the mean of the sample to be 7.9 pounds and the standard deviation to be 1.6 pounds. Based on this information, answer the questions below.
Identify the null and alternative hypothesis(in symbolic and sentence form), test statistic, P-value(or critical values), conclusion about the null hypothesis, and final conclusion that addresses the original claim(Don’t just say Reject the null hypothesis or fail to reject the null hypothesis). If you used the calculator, identify everything mentioned above in addition to which calculator functions and inputs for each field were used. In a clinical study of an allergy drug, 108 of the 202 subjects reported experiencing significant relief from their symptoms. At the 0.01 significance level, test the claim that more than half of all those using the drug experience relief.
Rejecting a correct null hypothesis is a type I error. True False
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Base on the relationship between the obtained value and the critical value, what decision would you make about the null hypothesis? Reject the null, the critical value exceeds the obtained value Accept the null, the critical value exceeds the obtained value Reject the null, the obtained value exceeds the critical value Accept the null, the obtained value exceeds the critical value
All test of hypothesis are based on the assumptions that A. The null hypothesis is true B. The observed difference is important c. The null hypothesis is false and should be rejected D. Type l errors are more serious than type ll errors E. None of the above
When is a researcher at risk of making a type 2 error? whenever H0 is rejected whenever H1 is rejected whenever H0 fails to reject the risk of a type 2 is independent of the decision from a hypothesis test
In this case, p-value is greater. So null hypothesis should not be rejected, correct?

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5 If the absolute value of the computed test value is greater than the absolute value of the critical value, what is the correct action to be done? O Reject the null hypothesis O Accept the alternative hypothesis O Accept the null hypothesis O Fail to reject the null hypothesis