QUESTIDΝ 4If statistical evidence is found against the null hypothesis, then wethe null hypothesis.O a. fail to rejectb.reject

Hypothesis Testing Hypothesis testing is an inferential method that uses sample data to make…

Answered: QUESTION 4 If statistical evidence is…

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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It is clairmeu that the proportion of high school students in the United States who use computers for educational purposes is at most 72%. Suppose that we have reason to believe otherwise and wish to carry out a hypothesis test for this claim. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H, :0 H, :0 O
QUESTION 1 If the alternate hypothesis states that p # 4,000, where is the rejection region for the hypothesis test? O 1. In the lower or left tail O 2. In the center O 3. In the upper or right tail O 4. In both tails Click Save and Submit to save and submit. Click Save All Answers to save all answers. hp
20. Which of the following is a null hypothesis? a. Pregnant women who drink cranberry juice will have lower urine bacterial counts than those who do not drink cranberry juice. b. The urine bacterial count of pregnant women who drink cranberry juice will be lower or equal to that of pregnant women who do not drink the juice. c. There will be a difference between ingestion of cranberry juice and among pregnant women who do and do not have high urine bacterial counts.
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2. A Type Il error is committed when A. we reject a null hypothesis that is true. B. we retain a null hypothesis that is true. C. we reject a null hypothesis that is false. D. we retain a null hypothesis that is false.
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QUESTION 4 Assume you are conducting a hypothesis test to determine if pesticides cause cancer in rural areas. The hypotheses are: The null hypothesis is no cancer. The alternate hypothesis is cancer. Select if the result for Box B is correct, a Type I error, a Type Il error or if there is insufficient information to make the decision. *****Read the labels very carefully. Но: по сапсer Ha: cancer Reality: Reality: Null is true Alternate is true (i.e. no cancer) (i.e. cancer) Decision: Accept the null hypothesis (i.e. test is negative for cancer) A B
A presidential candidate claims that the proportion of college students who are registered to vote in the upcoming election is at least 64%. Suppose that we want to sample a number of college students and carry out a hypothesis test to see if this daim may be refuted. State the null hypothesis H, and the alternative hypothesis H, that we would use for this test. H: 0 H;: 0 A OSO D=0
QUESTION 4 For the following hypothesis test: Ho 23 HA 23 0.025 with n- 25, s-8, and - 20, state (a). the decision rule in terms of the critical value of the test statistic (b). the calculated alue of the test statistic (c). the conclusion T T T Arial v 3 (12pt) - T-E - E- - O O D
Suppose X,,X,,...,X, is a random samples from normal distribution with mean, µand variance, n ΣΧ Let Y,, Y2,., Y, be an independent chi square distribution, each with 1 i=1 1 and X= degree of freedom. State the distribution and parameter(s) of each of the following random variables. a) J= \n(X – u)
Question 8: give the conclusion

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QUESTION 4 If statistical evidence is found against the null hypothesis, then we the null hypothesis. O a. fail to reject b.reject