a)
To construct: The 99% confidence interval to find the mean percent change in breast feeding mothers and interpret it.
a)
Answer to Problem 69E
The confidence interval is
Explanation of Solution
Given:
Formula used:
The formula to compute the confidence interval for population mean is:
Calculation:
The obtained Minitab output is:
Interpretation:
There is 99% probability that the mean percent change in BMC for the breast-feeding mothers lies between -4.569 and -2.605.
b)
To explain: Whether using the above part, it could be concluded that nursing mothers are losing bone mineral
b)
Answer to Problem 69E
No because the confidence interval does not contain 0.
Explanation of Solution
The confidence interval computed in above part lies between -4.569 and -2.605.Since, it does not contain 0. Thus, it cannot be said that the nursing mothers are losing bone mineral.
Chapter 8 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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