In: Statistics and Probability
Students in a biology class have been randomly assigned to one
of the two mentors for the laboratory portion of the class. A
random sample of final examination scores has been selected from
students supervised by each mentor, with the following
results:
Mentor A: 78, 78, 71, 89, 80, 93, 73, 76
Mentor B: 74, 81, 65, 73, 80, 63, 71, 64, 50, 80
At the 0.05 significance level, is there a difference in the mean
scores?
So, we reject H0 at 0.05 significance level i.e. there is difference in mean scores.
[t values are obtained from t-distribution table:
]