Question: A marketing survey is conducted in which students are to taste two different brands of soft drink. Their task is to correctly identify the brand tasted. A random sample of 200 students is taken. Assume that the students have no ability to distinguish between the two brands. Complete (a) through (d) below. c). What is the probability that the sample percentage of correct identifications is greater than 55%?
I stuck at c), I am getting 0.0789 but the correct answer is 0.0786. I don't know what to do next, I see that number is being plugin somewhere but I don't understand how there doing it and what there using? There using some sort of formula that I dont know where the got it from please explain. Can please explain step by step where I am suppose find the formula in excel to solve this problem? Please show me how instead listing it.
Question: A marketing survey is conducted in which students are to taste two different brands of soft drink. Their task is to correctly identify the brand tasted. A random sample of 200 students is taken. Assume that the students have no ability to distinguish between the two brands. Complete (a) through (d) below.
c). What is the probability that the sample percentage of correct identifications is greater than 55%?
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