Create confidence interval for portion of respondents

Reference no: EM13110689

In the poll to evaluate presidential popularity, each person in the random sample of 1000 voters was asked to agree with one of the given statements:

1) President is doing a good job.

2) President is doing a poor job.

3) I have no opinion.

A total of 560 respondents chosen first statement, indicating they thought president was doing good job.

a. Create the 95% confidence interval for portion of respondents who feel president is doing a good job.

b. Based on the intervalin part(a), It is sensible to conclude that majority (more than half) of population thinks the president is doing good job?

Reference no: EM13110689

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