See answer: For estimation concerning one proportion, use only method 1 to obtain the
Chapter 1, Problem 9.70(choose chapter or problem)
For estimation concerning one proportion, use only method 1 to obtain the condence intervals, unless instructed otherwise.According to USA Today (March 17, 1997), women made up 33.7% of the editorial sta at local TV stations in the United States in 1990 and 36.2% in 1994. Assume 20 new employees were hired as editorial sta. (a) Estimate the number that would have been women in 1990 and 1994, respectively. (b) Compute a 95% condence interval to see if there is evidence that the proportion of women hired as editorial sta was higher in 1994 than in 1990.
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