A certain financial services company uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. A recent sample of 1,000 adults showed 410 indicating that their financial security was more than fair. Suppose that just a year before, a sample of 1,100 adults showed 385 indicating that their financial security was more than fair. (A) State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. (Let P_{1} = population proportion most recently saying financial security more than fair and P_{2} = population proportion from the year before saying financial security more than fairEnter for as needed.) (B) conduct the hypothesis test and compute the p-value. at 0.05 level of significance, what is your conclusion. STATE YOUR CONLUSION (c) what is the 95% confidence interval estimate of the difference between the two population proportions? _ to _ what is your conclusion? the 95% confidence interval ___ zero. so we can be 95% confident that the population proportion of adults saying that their financial security is more than fair
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A certain financial services company uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time. A recent sample of 1,000 adults showed 410 indicating that their financial security was more than fair. Suppose that just a year before, a sample of 1,100 adults showed 385 indicating that their financial security was more than fair.
(A) State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. (Let P_{1} = population proportion most recently saying financial security more than fair and P_{2} = population proportion from the year before saying financial security more than fairEnter for as needed.)
(B) conduct the hypothesis test and compute the p-value. at 0.05 level of significance, what is your conclusion. STATE YOUR CONLUSION
(c) what is the 95% confidence
what is your conclusion?
the 95% confidence interval ___ zero. so we can be 95% confident that the population proportion of adults saying that their financial security is more than fair ____. .
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