Question: 2. A study is being conducted to compute the price of a hand cream. The researcher needs the error range of the price to be

2. A study is being conducted to compute the price of a hand cream. The researcher needs the error range of the price to be within $1, and suspects that the population standard deviation would be around $29.

a. What sample size would we require if we desired a 99 percent confidence level?

b. What about if we keep the confidence level 95%, but decide that our acceptable error is $4?

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