Data Analysis

These are questions that are on the project. I am having a hard time understanding 4 and 5a. I think I may be able to understand the rest of question 5 if I get a better understanding of 5a.

  1. Compute appropriate sample statistics for a quantitative variable in your data and explain what information you get from these values. Compute at least one measure of center and at least one measure of spread.
  2. For a variable in your dataset, compute a confidence interval, either for the population proportion of some property or for the population mean.

a. Identify your confidence level for the interval and explain what the confidence level means in general.

b. Identify the appropriate critical value (z* or t*) and determine its value.

c. Give the computation of the margin of error.

d. Interpret the results of your confidence interval.

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