Males and females were asked about what they would do if they received a $100 bill by mail, addressed to their neighbour, but wrongly delivered to them. Would they return it to their neighbour? Of the 69 males sampled, 52 said "yes” and of the 131 females sampled, 120 said “yes.” a. Find a 95% confidence interval for the difference in proportions for males and females who said “yes.” b. Does the data indicate that the proportions that said “yes” are different for males and females at a 5% level of significance? Conduct the test using the p-value approach.

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

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Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: n = 446x = 4299% ci for p.

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Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

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Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

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A: sample size(n)=365 x=42 confidence level=95% sample proportion(p^)=42365≅0.1151

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Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

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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.