The same owners operate two coffee shops in a large building One is (a) small and the other (b) large On any day, the number of customers is only observed for one shop Determine the point estimate of , the mean number of persons served during a weekday morning, and the 100(1 a) error margin, separately, for each shop when (a) Small n 65 103 s 15 1 95 (b) Large n 45 260 s 40 1 975

Question: The same owners operate two coffee shops in a large building. One is (a) small and the other (b) large. On any day, the number

The same owners operate two coffee shops in a large building. One is (a) small and the other (b) large. On any day, the number of customers is only observed for one shop. Determine the point estimate of μ, the mean number of persons served during a weekday morning, and the 100(1 - a)% error margin, separately, for each shop when
(a) Small n = 65 = 103
s = 15 1 - α = .95
(b) Large n = 45 = 260
s = 40 1 - α = .975

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