When Vincenzo Baranello s blood pressure is in control his systolic
When Vincenzo Baranello’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.
a. Does this provide strong evidence that his true mean has changed? Carry out the five steps of the significance test, interpreting the P-value.
b. Review the assumptions that this method makes. For each assumption, discuss it in context.
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