To test H₂: =20 versus H,: p<20, a simple random sample of size n=16 is obtained from a population that is known to be normally distributed Answer parts (a)-(d). (a) If x=18.4 and s=4.3, compute the test statistic. t=(Round to two decimal places as needed.) (b) Draw a 1-distribution with the area that represents the P-value shaded. Which of the following graphs shows the correct shaded region? OA COB. OC. A Q 1 (c) Approximate the P-value. Choose the correct range for the P-value below. OA 0.10
To test H₂: =20 versus H,: p<20, a simple random sample of size n=16 is obtained from a population that is known to be normally distributed Answer parts (a)-(d). (a) If x=18.4 and s=4.3, compute the test statistic. t=(Round to two decimal places as needed.) (b) Draw a 1-distribution with the area that represents the P-value shaded. Which of the following graphs shows the correct shaded region? OA COB. OC. A Q 1 (c) Approximate the P-value. Choose the correct range for the P-value below. OA 0.10
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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Transcribed Image Text:To test Ho: 20 versus H,: <20, a simple random sample of size n= 16 is obtained from a population that is known to be normally distributed. Answer parts (a)-(d).
(a) If x= 18.4 and s=4.3, compute the test statistic.
t= (Round to two decimal places as needed.)
(b) Draw a t-distribution with the area that represents the P-value shaded. Which of the following graphs shows the correct shaded region?
OA
OB.
OC.
A
Q
3
A
Q
(c) Approximate the P-value. Choose the correct range for the P-value below.
OA 0.10<P-value < 0.15
OB. 0,05 P-value <0.10
OC. 0.15<P-value <0.20
OD. 0.20<P-value <0.25
(d) If the researcher decides to test this hypothesis at the a 0.05 level of significance, will the researcher reject the null hypothesis?
OA. The researcher will not reject the null hypothesis since the P-value is not less than a
OB. The researcher will reject the null hypothesis since the P-value is not less than a
OC. The researcher will not reject the null hypothesis since the P-value is less than a
OD. The researcher will reject the null hypothesis since the P-value is less than a
A Ma
C
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