Need help to construct a 90% confidence interval for my statistics homework

Jan 11th, 2016
Anonymous
Category:
Accounting
Price: $10 USD

Question description

Project Week 5

For these project assignments throughout the course you will need to reference the data in the ROI Excel spreadsheet. Download it here. 


Using the ROI data set:

  1. For each of the 2 majors consider the ‘School Type’ column.  Assuming the requirements are met, construct a 90% confidence interval for the proportion of the schools that are ‘Private’.  Be sure to interpret your results.
  2. For each of the 2 majors construct a 95% confidence interval for the mean of the column ‘Annual % ROI’.  Be sure to interpret your results.

Attachment Spreadsheet:

ROI Exel

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