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The option to buy extended warranties is commonplace with most electronics purchases.But does the type of purchase affect a consumer's willingness to pay extra for an extendedwarranty? Data for 420 consumers who purchased big screen TVs and laptop computersfrom a leading electronics retailer are summarized in the table.Purchased Warranty? Yes No TotalBig Screen TV 30 42 72Laptop Computer 145 203 348 Total 175 245 420a. What is the probability that a consumer purchases an extended warranty?b. What is the probability that a consumer purchases a big screen TV and an extendedwarranty?c. What is the probability that a consumer purchases an extended warranty given thathe/she has purchased a big screen TV?8) Does it appear that the decision to purchase an extended warranty and type of electronics (bigscreen TV or laptop computer) purchased are independent? Explain
According to the survey, 37% of the adults are concerned that employers are monitoring phone calls. Use the binomial distribution formula to calculate the probability that:
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Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer
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