Question

When 14 different second-year medical students measued teh systolic blood pressure of the same person, they obtained the results listed below. assuming that the population standard deviation is known to be 10 mmhg, use
a.05 significance level to test the claim that the mean blood pressure leve is less than 140 mmhg. hypertenstion is defined to be a blood pressure level taht is too high because it is 140 mmhg or greater. assume the blood pressure levels are normally distributed. based on the test results, can it be safely concluded that the person does not have hypertension. 138,140,135,120,120,125,120,140,130,144,143,130,140,150?

Answer 1

Mean = 133.9
then calculate the z value
with z value you will find out the p value on a table.
if the p value is below .05 reject the null hypotheses