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When a man’s blood pressure is in control, his systolic blood pressure reading has a mean...

When a man’s blood pressure is in control, his systolic blood pressure reading has a mean of 130. For the last six times he has monitored his blood pressure, he has obtained the values:

140,150,155,155,160,140

Does this provide evidence that his true mean blood pressure has changed? Carry out the steps of the significance test and interpret the p-value in terms of the problem.

Math   Statistics-And-Probability   
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