1. The confidence level measures A. The probability of the parameter being contained in the interval B. How often the estimation method is successful C. The probability of a statistic being contained in the interval D. All of the above 2. In the 1960 presidential election, 34,226,731 people voted for Kennedy; 34,108,157 for Nixon, and 197,029 for third-party candidates. would it be appropriate to find a confidence interval for the proportion of voters choosing Kennedy? A. Yes. Simply find the standard error and add/subtract 1.96 times the standard error to the estimate. B. No. We already know the population proportion. We only need a confidence interval when we have a sample proportion and want to generalize about the population.

Q: 2. Given: n=80, a = 15, level of confidence is 92%. What is the margin of error of the given data?

A:

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A: Solution

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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.