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Free Response 11 Use the normal approximation to the binomial to find the following probabilities. Seventy percent of people in the US have type O blood You randomly select 30 people in the US and

Free Response 11. Use the normal approximation to the binomial to find the following probabilities. Seventy percent of people in the US have type O blood. You randomly select 30 people in the US and ask them ifthey have type O blood. Are np and nq both greater than 5? st dev. mean a) Exactly 20 people have type O blood b) At least 20 have type o blood c) Fewer than 20 have type o blood 12. You took a random sample of 13two-slice toasters and found the mean price was 61.12 and the standard deviation was 24.62. Assume the prices are normally distributed. Find a 90% confidence interval for the population mean. Is this a z-dist, t-dist, or neither, and why? Critical value from table Margin of Error Confidence interval

Aug 01 2020 View more View Less

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