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OpenStudy (anonymous):
A 95% confidence interval for the mean diastolic blood pressure in women is 62 to 110. What is the margin of error?
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ganeshie8 (ganeshie8):
mean = (62+100)/2 = 81
ganeshie8 (ganeshie8):
margin of error = 81-62 = ?
OpenStudy (anonymous):
19
ganeshie8 (ganeshie8):
Yep!
OpenStudy (anonymous):
But my prof did it some other way and got a different answer. She got 24 as margin of error
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OpenStudy (anonymous):
and 38 for point of estimation
ganeshie8 (ganeshie8):
I'm not sure how your teacher got those numbers
OpenStudy (anonymous):
ganeshie8 (ganeshie8):
Hey looks I made a typo I took the upper bound as 100 instead of 110
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