MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question

Find the p-value and part iv.

Next For the following tests of hypothese, assume we calculated the test statistic and found the rejection region. i) Setup the hypotheses; ii) Fir Test statistic z = 2.03; Rejection Region : z> 1.28 i) Choose the correct hypotheses evel a of the test; ii) Graph and calculate/estimate the P-value; iv) State your conclusion for the test. Question Ο Α. Ho: μ = μο vs HA' μ > μο В. Но: и Ho vs HA: H = HO > O C . H0: μ = μο VS HA: μ μο O D. Ho:H = Ho vs HA: µ # Ho %3D ii) Significance level a = 0.10 (Keep two digits after decimal point) iii) Which of the following shaded area represent the p-value of this test? O A. O B. -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 С. D. -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 Calculate P-value: P-value = (Keep four digits after decimal point) iv) Choose All of the correct statements from the following: Reject H, since p-value < a Do not reject Ho since z is not in the rejection region Do not reject Ho since p-value > a Do not reject H, since p-value < « Reject H, since z is in the rejection region Reject H, since p-value > a
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Transcribed Image Text:Next For the following tests of hypothese, assume we calculated the test statistic and found the rejection region. i) Setup the hypotheses; ii) Fir Test statistic z = 2.03; Rejection Region : z> 1.28 i) Choose the correct hypotheses evel a of the test; ii) Graph and calculate/estimate the P-value; iv) State your conclusion for the test. Question Ο Α. Ho: μ = μο vs HA' μ > μο В. Но: и Ho vs HA: H = HO > O C . H0: μ = μο VS HA: μ μο O D. Ho:H = Ho vs HA: µ # Ho %3D ii) Significance level a = 0.10 (Keep two digits after decimal point) iii) Which of the following shaded area represent the p-value of this test? O A. O B. -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 С. D. -3 -2 -1 0 1 2 3 -3 -2 -1 0 1 2 3 Calculate P-value: P-value = (Keep four digits after decimal point) iv) Choose All of the correct statements from the following: Reject H, since p-value < a Do not reject Ho since z is not in the rejection region Do not reject Ho since p-value > a Do not reject H, since p-value < « Reject H, since z is in the rejection region Reject H, since p-value > a
Expert Solution
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Step 1

From the part i, the tail of the test is right tail test.

Test statistic=2.03

P value:

P=P(z>test statistic)

 =P(z>2.03)

 =1-P(z<2.03)

=0.0212, from the excel function, =1-NORM.DIST(2.03,0,1,TRUE)

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