2. Compute the margin of error of p given the following: Confidence level 97%, p 0.85, n 120. 3. Compute the confidence interval estimate given the following: Confidence level 99 %, p= 0.4, n 40. 4....

 2. Compute the margin of error of p given the following: Confidence level 97%, p 0.85, n 120.

3. Compute the confidence interval estimate given the following: Confidence level 99 %, p= 0.4, n 40.

4. In a survey participated by 100 college students, it was found that 60% of them have personal computers at home. Construct a 95% confidence interval estimate of the true proportion of all college students who have personal computers at home.

5. A politician engaged the services of a private opinion pollster to determine the sample size needed among his constituents to interview about their perceptions on the freedom of information bill. Previous polls revealed that approximately 62.5% are in favor of the bill. The politicians adopted the 95% level of confidence within an error of 2%. How large a sample does the pollster need?