Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Student’s t-test for maintenance strategy comparison between large enterprises and SMEs
| Levene’s test for equality of variances | t-test for equality of means | ||||
|---|---|---|---|---|---|
|
| |||||
| F | Significance | t | df | Significance (2-tailed) | |
| Equal variance assumed | 6.913 | 0.023 | −5.961 | 11 | 0.000094 |
| Equal variance not assumed | −11.225 | 9 | 0.000001 | ||
