T-test

Question 1

Function of T-test

Answer 1

To compare the mean of two data sets

Question 2

Reason for choosing T-test

Answer 2

Looking for differences between two means

Question 3

T-test null hypothesis

Answer 3

There is no statistically significant difference between the means

Question 4

T-test results

Answer 4

If the T-test statistic is greater than the critical value at p=0.05 we reject the null hypothesis. There is a statistically significant difference between the means. There is less than 5% probably the results occurred due to chance

Question 5

T-test degrees of freedom

Answer 5

(N1 + N2) - 2