Find probability that sample will have between a range

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Reference no: EM13141722

Conduct a marketing experiment in which students are to taste 1 of 2 different soft drinks. Their task is to correctly identify the brand tasted. You select a random sample of 200 students and assume that the students have no ability to distinguish between the two brands. (hint, if an individual has no abillity to distinguish betweeen the two sofft ).

A) what is the probability that the sample will have between 50% and 60% of the identificaton
B) the probability is 90% that the samle percentage is contained within what symmetrical limits of the population percentage?

Reference no: EM13141722

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