Find the probability that the sample proportion obtained

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Again consider the survey of 350 Bank of America customers discussed in Exercise 7.31, and assume that 48% of Bank of America customers would currently express customer delight. That is, assume p = .48. Find:

a. The probability that the sample proportion obtained from the sample of 350 Bank of America customers would be within three percentage points of the population proportion. That is, find P(.45 <>pˆ .51).

b. The probability that the sample proportion obtained from the sample of 350 Bank of America customers would be within six percentage points of the population proportion. That is, find P(.42 <>pˆ .54).

Text Book: Business Statics in Practice By BOWERMAN.

Reference no: EM13910077

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