Do you have a sample size?
Need some guidance on solving this null hypothesis problem.
Test the claim at 1% significance level that graduates from University X and University Y experience the same salary increase after graduation.
Univesity X
Mean $8,000
Standard Deviation: $1,000
University Y
Mean $7,000
Standard Deviation: $1,000
Should (could) this be done in Excel through a t test: two sample assuming equal variances?