When 14 different second-year medical students measured the systolic blood pressure of the same person, they obtained the results listed below (in mmHg). Assuming that the population standard deviation is known to be 10 mmHg, use a 0.05 significance level to test the claim that the mean blood pressure level is less than 140 mmHg. Hypertension is defined to be a blood pressure level that is too high because it is 140 mmHg or greater. Assume the blood pressure levels are normally distributed. Based on the hypothesis test results, can it be safely concluded that the person does not have hypertension? 130 138 120 135 120 125 120 120 140 144 143 140 120 150 (a) Identify the test statistic. (You will need to decide whether to use z-scores or t-scores) z or t= (Round the final answer to two decimal places as needed. Round all intermediate values to two decimal places.) (b) Identify the P-value. (Round to four decimal places as needed.) The P-value is (c) What is the fınal conclusion? O A. Fail to reject Ho. There is not sufficient evidence to support the claim. O B. Reject Ho. There is sufficient evidence to support the claim. OC. Reject Ho: There is not sufficient evidence to support the claim. O D. Fail to reject Ho. There is sufficient evidence to support the claim. (d) Can it be safely concluded that the person does not have hypertension? Yes No
When 14 different second-year medical students measured the systolic blood pressure of the same person, they obtained the results listed below (in mmHg). Assuming that the population standard deviation is known to be 10 mmHg, use a 0.05 significance level to test the claim that the mean blood pressure level is less than 140 mmHg. Hypertension is defined to be a blood pressure level that is too high because it is 140 mmHg or greater. Assume the blood pressure levels are normally distributed. Based on the hypothesis test results, can it be safely concluded that the person does not have hypertension? 130 138 120 135 120 125 120 120 140 144 143 140 120 150 (a) Identify the test statistic. (You will need to decide whether to use z-scores or t-scores) z or t= (Round the final answer to two decimal places as needed. Round all intermediate values to two decimal places.) (b) Identify the P-value. (Round to four decimal places as needed.) The P-value is (c) What is the fınal conclusion? O A. Fail to reject Ho. There is not sufficient evidence to support the claim. O B. Reject Ho. There is sufficient evidence to support the claim. OC. Reject Ho: There is not sufficient evidence to support the claim. O D. Fail to reject Ho. There is sufficient evidence to support the claim. (d) Can it be safely concluded that the person does not have hypertension? Yes No
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:When 14 different second-year medical students measured the systolic blood pressure of the same person, they obtained the
results listed below (in mmHg). Assuming that the population standard deviation is known to be 10 mmHg, use a 0.05
significance level to test the claim that the mean blood pressure level is less than 140 mmHg. Hypertension is defined to be a
blood pressure level that is too high because it is 140 mmHg or greater. Assume the blood pressure levels are normally
distributed. Based on the hypothesis test results, can it be safely concluded that the person does not have hypertension?
130
138
120
135
120
125
120
120
140
144
143
140
120
150
(a) Identify the test statistic. (You will need to decide whether to use z-scores or t-scores)
z or t=
(Round the final answer to two decimal places as needed. Round all intermediate values to two decimal places.)
(b) Identify the P-value.
(Round to four decimal places as needed.)
The P-value is
(c) What is the fınal conclusion?
O A. Fail to reject Ho. There is not sufficient evidence to support the claim.
O B. Reject Ho. There is sufficient evidence to support the claim.
OC. Reject Ho: There is not sufficient evidence to support the claim.
O D. Fail to reject Ho. There is sufficient evidence to support the claim.
(d) Can it be safely concluded that the person does not have hypertension?
Yes
No
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