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Let Y be b(192,p). We rehect H0:p=0.75 and accept H1: p>0.75 if and only if Y>=152. Use the normal approx to determine.
A) sigma = P(Y>=152: p=0.75)
B) sigma=P(Y<152) when p=0.80
Based on an SRS of 50 pineapples with a mean weight of 31.6 ounces, did the new irrigation system cause an increase in the mean weights of pineapples produced? Explain your answer completely.
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A professor asked her sophomore students, "How many drinks do you typically have per session? (A drink is defined as one 12oz beer, one 4oz glass of wine, or one 1oz shot of liquor.)"
percentage of persons completing 4 years of college23 26 30 34 26 25 23 22 31 2224 38 33 27 27 34 24 24 24 2122 24 28
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How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate u and standard deviation in the formula for the normal approximation to the binomial
Construct a 90% confidence interval for the mean nicotine content of this brand of cigarette. The population of total compensations of CEOs in the service industry is approximately normally distributed.
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