The mean diastolic blood pressure for a random sample of  60  people was  97  millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be  12  millimeters of mercury, find a  90%  confidence interval for the true mean diastolic blood pressure of all people. Then give its lower limit and upper limit. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit:   Upper limit:

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The mean diastolic blood pressure for a random sample of 
60
 people was 
97
 millimeters of mercury. If the standard deviation of individual blood pressure readings is known to be 
12
 millimeters of mercury, find a 
90%
 confidence interval for the true mean diastolic blood pressure of all people. Then give its lower limit and upper limit.

Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.)

Lower limit:
 
Upper limit:
 
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