A drug manufacturer conducted a study to try to determine if the proportion of elderly patients that experienced side effects was different than the proportion of younger adults that experienced side effects. After conducting the experiment, they computed a 95% confidence interval for the difference of proportions (elderly less younger adults) was (.135, .228). Based on these results, can they conclude that there is a difference between the two groups? Explain why.

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A: The comparison case is re-admission number for those who met a social worker (x1) is different from…

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A: Given,p-value =0.003and  level of significance(α)=0.05

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Q: What happens to the width of a confidence interval as the significance level, a, decreases?

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.