SOLUTION: Ok this is the question as it is written, I have worked on it so long and messed it up so now Im totally confused...When 15 different second year medical students at Fletcher Alle

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Question 607768: Ok this is the question as it is written, I have worked on it so long and messed it up so now Im totally confused...When 15 different second year medical students at Fletcher Allen Hospital 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 10mmHg, use a .05 significance level to test the claim that the mean blood pressure level is less than 140mmHg. Hypertension is defined to be a blood pressure level that is too high (140 mmHg or greater). Based on the hypothesis test results, can it be safely concluded that the person does not have hypertension?
142 133 139 143 125 128 130 134 133 148 146 144 133 150 142
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Use a one-sample z-test with





We know that , and . Input the data values into your calculator (carefully) and run a z-test.