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| Teaching Since: | May 2017 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
7.99 Suppose that 65% of all registered voters in a certain area favor a 7-day waiting period before purchase of a
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handgun. Among 225 randomly selected voters, what is the probability that
a.   At least 150 favor such a waiting period?
b.   More than 150 favor such a waiting period?
c.   Fewer than 125 favor such a waiting period?
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7.100 Flash bulbs manufactured by a certain company are sometimes defective.
a.   If 5% of all such bulbs are defective, could the tech- niques of this section be used to approximate the probabil- ity that at least 5 of the bulbs in a random sample of size 50 are defective? If so, calculate this probability; if not, explain why not.
b.   Reconsider the question posed in Part (a) for the proba- bility that at least 20 bulbs in a random sample of size 500 are defective.
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