Question

The mean diastolic blood pressure for a random sample of 60 style=”color:rgb(0,0,0);”> people was 87 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 8 millimeters of mercury, find a 90% confidence interval for the true mean diastolic blood pressure of all people. Then complete the table below.Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. 
What is the lower limit of the 90% confidence interval?What is the upper limit of the 90% confidence interval?

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