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A school administrator believes that there is no difference between student drop out rates for schools...

A school administrator believes that there is no difference between student drop out rates for schools located in rural areas and schools located in urban areas. A random sample of 100 schools in the rural areas was taken. The student dropout rate of the schools in the sample was 27%. A random sample of 80 schools in the urban areas had a dropout rate of 20%.

A. Give a point estimate for the differences between the population proportions for the two districts.

B. Give a point estimate of the standard deviation for the difference between the population proportions.

C. Compute the test statistic for testing the administrator's belief.

D. At 95% confidence using the p-value approach, test the administrator's belief.

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