Statistical analysis
T test
• The f test and the student t- test is used to compare data
• The F test allows us to determine if there is any significant variance in
the data so that we can determine what t-test to use.
• The t-test allows us to determine if there is a significant difference in
the means of two samples
• The Null hypothesis to be tested is that there is no significant
difference at the 95% confidence level
T test and excel
For output range type $E$1 for example
If t-stat is less than the critical tscore then do not reject the null hypothesis
That there is no significant difference at this level