Refer to Exercise 9. A device will be manufactured in which two of the components in Exercise 9 will be connected in series. The components function independently, and the device will function only if both components function. Let q be the probability that a device functions. Find a 95% confidence interval for q.
What will be an ideal response?
. From part (a), we are 95% confident that 0.0529 < p < 0.1055.
We are therefore 95% confident that 
, or equivalently, that 0.800 < q < 0.897. The confidence interval is (0.800, 0.897).
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