1. Two groups of students are tested after two types of instruction. Student Group 1 receives traditional instruction and Student Group 2 receives modified instruction. Below are the t-test results:

A)What is the null hypothesis?

t-Test: Two-Sample Assuming Equal Variances
	Students 1	Students 2
Mean	15.3	16.9
Variance	4.9	2.766666667
Observations	10	10
Pooled Variance	3.833333333
Hypothesized Mean Difference	0
df	18
t Stat	-2.82732877
P(T<=t) one-tail	0.042139087
t Critical one-tail	1.734063607
P(T<=t) two-tail	0.034278174
t Critical two-tail	2.10092204

B) Use the two-tail probability. Is there a difference between the group of students in group 1 and students in group 2

C) In a sentence or two, describe the results in terms of the statistics.