• 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?
  • How do we interpret the results, in context of our study?
• 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?
  • How do we interpret the results, in context of our study?

Note: The goal of the project is to practice making a confidence interval for a mean and proportion with real data. Do not worry about failed assumptions tests and do not make corrections for small sample size. Use primary methods described in text and used on homework. Age Gender Points 95% Confidence Interval for Average Age of Online College Students: 26 M 32 F Sample Mean: 32.61905 34 F Sample St. Dev: 11.21372 Note: Calculation cells should list 18 F 1 Sample Size 21 the numbers and operations used 49 F to get your answers. Do not put 26 M 2 Distribution: T-Distribution the generic formula and show all 45 M calculation steps. 20 M 2 Critical Value: 2.06 *2 decimals 23 M 18 F Margin of Error: 4.42 *2 decimals Calculation: 2.0555*11.181996/sqrt27 37 F HAN ower Bound: 19.54 *2 decimals Calculation: 23. 48 F Upper Bound *2 decimals Calculation: 40 F 35 M Interpret 25 M 2 (context) 18 M 44 M 95% Confidence Interval for Proportion of Male Online College Students: 41 F 52 F Sample Size: 34 M Number of Males: 20 F Male Proportion: Female Proportion *4 decimals 2 Distribution: 2 al Value: *2 decimals Margin of Error: *4 decimals Calculation: Lower Bound *4 decimals Calculation Upper Bound: *4 decimals Calculation: Interpret 2 (context) 25