A marketing survey is conducted in which students are to taste two different brands of soft drink. Their task is to corr

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A Marketing Survey Is Conducted In Which Students Are To Taste Two Different Brands Of Soft Drink Their Task Is To Corr 1 (199.49 KiB) Viewed 12 times

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 180 students is taken. Assume that the students have no ability distinguish between the two brands. Complete (a) through (d) below. a. What is the probability that the sample will have between 50% and 60% of the identifications correct? 0.4963 (Round to four decimal places as needed.) b. The probability is 90% that the sample percentage is contained within what symmetrical limits of the population percentage? Identify the limits of the population percentage. The lower limit is. The upper limit is. (Round to four decimal places as needed.) a Screen Shot 2022-07-05 at 1.40.06 AM ~ Given a normal distribution with µ = 50 and o=5, and given you select a sample of n = 100, complete parts (a) through (d). a. What is the probability that X is less than 49? P(X<49) = 0.0228 (Type an integer or decimal rounded to four decimal places as needed.) b. What is the probability that X is between 49 and 51.5? Q Search P(49<X<51.5)= (Type an Integer or decimal rounded to four decimal places as needed.) Scicon of 2022-07.9.49 Screen Sha 2022-07...0.0€ Screen Sho 2022-07...40.1