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

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 190 students is taken. Assume that the students have no ability to 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? 0.4970 ​(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 0.4403. The upper limit is 0.5597. ​(Round to four decimal places as​ needed.) There is a​ 90% probability that the sample percentage will be contained within ?% symmetrically around the population percentage. ​(Round to the one decimal place as​ needed.)

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