A sample of 64 statisticsstudents at a small college had a meanmathematicsACT score of 28 with a standard deviationof 4. Estimate the mean mathematics ACT score for all statisticsstudents at this college. Give the 95% confidence interval.
The solution provides step by step method for the calculation of confidence interval for population mean. Formula for the calculation and Interpretations of the results are also included. Interactive excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data.