The BDHS reported that the mean cholesterol level in 2020 for all adults was 203 in a certain area. Around a sample of 3,310 participants were questioned about the cholesterol levels who attended the last month survey and it is found that mean cholesterol level is 200.3 with a standard deviation of 36.8. Is there any statistical evidence of a difference in mean cholesterol levels in that area? Conduct the test at 1% level of significance. a. Which of the following statistical tests is most appropriate in this scenario? Two-Tailed Z-Test One-Tailed Z-Test O Two-Tailed T-Test One-Tailed T-Test b. What are the appropriate hypotheses for the test? О Но : и — 203 Hі : д + 203 Но : д + 203 Н : д — 203 Но : и — 200.З Ні : д > 200.3 Но : д — 200.3 Ні : д < 200.3 c. After conducting the appropriate significance test, the test statistic was found to be -4.22. Therefore, the conclusion for the test is: O Reject Ho, because p-value is less than 0.01 O Fail to reject Họ, because -4.22 falls outside the critical region O Reject H1, because -4.22 falls within the critical region O Fail to reject Ho, because p-value is less than 0.01
The BDHS reported that the mean cholesterol level in 2020 for all adults was 203 in a certain area. Around a sample of 3,310 participants were questioned about the cholesterol levels who attended the last month survey and it is found that mean cholesterol level is 200.3 with a standard deviation of 36.8. Is there any statistical evidence of a difference in mean cholesterol levels in that area? Conduct the test at 1% level of significance. a. Which of the following statistical tests is most appropriate in this scenario? Two-Tailed Z-Test One-Tailed Z-Test O Two-Tailed T-Test One-Tailed T-Test b. What are the appropriate hypotheses for the test? О Но : и — 203 Hі : д + 203 Но : д + 203 Н : д — 203 Но : и — 200.З Ні : д > 200.3 Но : д — 200.3 Ні : д < 200.3 c. After conducting the appropriate significance test, the test statistic was found to be -4.22. Therefore, the conclusion for the test is: O Reject Ho, because p-value is less than 0.01 O Fail to reject Họ, because -4.22 falls outside the critical region O Reject H1, because -4.22 falls within the critical region O Fail to reject Ho, because p-value is less than 0.01
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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![The BDHS reported that the mean cholesterol level in 2020 for all adults was 203 in a certain area. Around a sample of 3,310 participants were
questioned about the cholesterol levels who attended the last month survey and it is found that mean cholesterol level is 200.3 with a standard deviation
of 36.8. Is there any statistical evidence of a difference in mean cholesterol levels in that area? Conduct the test at 1% level of significance.
a. Which of the following statistical tests is most appropriate in this scenario?
Two-Tailed Z-Test
One-Tailed Z-Test
Two-Tailed T-Test
One-Tailed T-Test
b. What are the appropriate hypotheses for the test?
Но : д — 203 Н : д + 203
Но : д + 203 Н] :д — 203
Но : и — 200.3 Ні : д > 200.3
Ho : µ = 200.3 H1 : µ < 200.3
C. After conducting the appropriate significance test, the test statistic was found to be -4.22.
Therefore, the conclusion for the test is:
Reject Ho, because p-value is less than 0.01
Fail to reject Ho, because -4.22 falls outside the critical region
Reject H1, because -4.22 falls within the critical region
Fail to reject Ho, because p-value is less than 0.01](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F19bf89f6-314d-425f-a595-2948aab50582%2Ff804dee4-d08c-482b-93a1-74356b0f6118%2Fq4l5bu_processed.png&w=3840&q=75)
Transcribed Image Text:The BDHS reported that the mean cholesterol level in 2020 for all adults was 203 in a certain area. Around a sample of 3,310 participants were
questioned about the cholesterol levels who attended the last month survey and it is found that mean cholesterol level is 200.3 with a standard deviation
of 36.8. Is there any statistical evidence of a difference in mean cholesterol levels in that area? Conduct the test at 1% level of significance.
a. Which of the following statistical tests is most appropriate in this scenario?
Two-Tailed Z-Test
One-Tailed Z-Test
Two-Tailed T-Test
One-Tailed T-Test
b. What are the appropriate hypotheses for the test?
Но : д — 203 Н : д + 203
Но : д + 203 Н] :д — 203
Но : и — 200.3 Ні : д > 200.3
Ho : µ = 200.3 H1 : µ < 200.3
C. After conducting the appropriate significance test, the test statistic was found to be -4.22.
Therefore, the conclusion for the test is:
Reject Ho, because p-value is less than 0.01
Fail to reject Ho, because -4.22 falls outside the critical region
Reject H1, because -4.22 falls within the critical region
Fail to reject Ho, because p-value is less than 0.01
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