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Based on a provided class sample, create a 95
% confidence interval for the mean age and the proportion of males in the population of all online college students. Using the provided Excel file, answer the following in the “week 5” Excel tab:
For the average age, form a 95
% confidence interval:
What distribution should be used?
What is the critical value?
What is the error bound?
What is the lower bound?
What is the upper bound?
For the proportion of males, form a 95
% confidence interval:
What distribution should be used?
What is the critical value?
What is the error bound?
What is the lower bound?
What is the upper bound?