At the Many Chips Cookie Company, they are serious about the number of chocolate chips in their cookies. They claim that each cookie has ccc chips. If their claim is true, there will be 200 chips in 10 cookies. Write an equation to describe this situation.

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.