In order to estimate the proportion, p, of a large class of college freshmen that had
Chapter 7, Problem 7.3-5(choose chapter or problem)
In order to estimate the proportion, p, of a large class of college freshmen that had high school GPAs from 3.2 to 3.6, inclusive, a sample of n = 50 students was taken. It was found that y = 9 students fell into this interval. (a) Give a point estimate of p. (b) Use Equation 7.3-2 to find an approximate 95% confidence interval for p. (c) Use Equation 7.3-4 to find an approximate 95% confidence interval for p. (d) Use Equation 7.3-5 to find an approximate 95% confidence interval for p.
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