# SOLUTION: A company is taking a survey to find out whether people like its product. Their last survey indicated that 70% of the population like the product. Based on that, of a sample of

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: A company is taking a survey to find out whether people like its product. Their last survey indicated that 70% of the population like the product. Based on that, of a sample of       Log On

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 Algebra: Probability and statistics Solvers Lessons Answers archive Quiz In Depth

 Question 164816: A company is taking a survey to find out whether people like its product. Their last survey indicated that 70% of the population like the product. Based on that, of a sample of 58 people, find the probabilities of the following. a. All 58 like the product. b. From 28 to 30 (inclusive) like the product.Answer by themathprof(21)   (Show Source): You can put this solution on YOUR website!You can use the normal curve as an approximation to the binomial. mean=np=58(.7)40.6 p=.7; n=58 q=1-p=.3 a) becomes p(57.5 correction for continuity b) becomes p(27.5 change x's to z's, use table of standard normal curves areas visit www.math911.com. download,install, activate math911 (all free!) it has hundreds of problems like this worked out step by step in the statistics chapter 12 Just enter your data and watch Professor Weissman show you how to make a frequency table, histogram, etc. step by step. tell your classmates and teacher