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Seventy percent of adults favor some kind of government control on the prices of medicines. Assume that this percentage is true for the current population

Seventy percent of adults favor some kind of government control

on the prices of medicines. Assume that this percentage is true for the current

population of all adults.

a) Find the probability that the proportion of adults in a random sample of 400 who

favor some kind of government control on the prices of medicines is

i. less than 0.65,

ii. between 0.73 and 0.76

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