Sifford Corporation, which makes landing gears, has provided the following data for a recent month: 
Required:
Determine the rate and efficiency variances for the variable overhead item supplies and indicate whether those variables are favorable or unfavorable. Show your work!
Definitions:
Median
The middle value in a data set, where half the numbers are lower and half are higher.
Mean
In mathematics, the average or central value of a set of numbers, calculated by dividing the sum of the values in the set by the number of values.
Correlation Coefficient
A statistical measure that indicates the extent to which two variables change together, showing the strength and direction of their relationship.
Confidentiality Requirements
Confidentiality requirements pertain to the obligations to protect personal, sensitive, or classified information from unauthorized access or disclosure.
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