In a customer satisfaction survey a random sample of 635 customers were asked their opinion on the
Question:
(a) Construct a two-sided 05'/ confidence interval for the proportion of customers that are very satisfied.
(b) Is it safe to conclude that overall at least 75% of the customers are very satisfied? Use an appropriate hypothesis test.
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a p 485635 0764 With z 0025 1960 the confidence interval is 0764 196063...View the full answer
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Related Book For
Probability And Statistics For Engineers And Scientists
ISBN: 9780495107576
3rd Edition
Authors: Anthony Hayter
Question Posted:
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