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Title: A local school board would like to test the hypothesis that the proportion of Americans who think ... Post by: whigger666 on Dec 30, 2021 A local school board would like to test the hypothesis that the proportion of Americans who think unions have a positive effect on schools has decreased this year when compared to last year. A random sample of 160 Americans last year found that 48 felt unions have a positive effect on schools. A random sample of 140 Americans this year found that 28 felt unions have a positive effect on schools. Define Population 1 as this year and Population 2 as last year. Construct a 90% confidence interval for the difference in population proportions and interpret the results.
Title: A local school board would like to test the hypothesis that the proportion of Americans who think ... Post by: SupremeDJ on Dec 30, 2021 Content hidden
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