Description
Using the ROI data set:
- 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.
- 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.
* ROI Data has been attached.
Unformatted Attachment Preview
Purchase answer to see full attachment
Explanation & Answer
Attached.
School Type Cost
30 Year ROI
Annual ROI
Private
$222.700,00 $1.786.000,00
7,70%
Private
$176.400,00 $1.758.000,00
8,40%
Private
$212.200,00 $1.714.000,00
7,80%
Public
$125.100,00 $1.535.000,00
9,10%
Private
$212.700,00 $1.529.000,00
7,40%
Public
$92.910,00 $1.501.000,00
10,10%
Private
$214.900,00 $1.485.000,00
7,30%
Private
$217.800,00 $1.483.000,00
7,20%
Private
$225.600,00 $1.444.000,00
7,00%
Private
$217.300,00 $1.442.000,00
7,10%
Private
$226.500,00 $1.441.000,00
7,00%
Private
$215.500,00 $1.438.000,00
7,20%
Private
$223.500,00 $1.428.000,00
7,00%
Private
$226.600,00 $1.414.000,00
7,00%
Private
$189.300,00 $1.397.000,00
7,50%
Public
$89.700,00 $1.382.000,00...