Consider the following hypothesis test.
H0: u1-u2 = 0
Ha: u1-u2 (not equal to) 0
The following results are for two independent samples taken from two populations.
SAMPLE 1: sample size=80, mean =104, std =8.4
SAMPLE 2: sample size=70, mean =106, std =7.6
a. What is the value of the test statistic?
b. What is the p-value?