Independent sample t test
Paired t test comparing the means of two populations
July 9, 2019Independent sample t test for comparing means
July 9, 2019A marketing firm asked a random set of married and single men as to how much they were willing to spend for a vacation. At = .05, is a difference in the two amounts?
Married men Single men
Sample size 50 70
Mean spending 260 185
Sample variance 4500 9000
A) Yes, because the test value 5.07 is outside the interval (-1.96, 1.96)
B) No, because the test value 2.00 is outside the interval (-1.96, 1.96)
C) No, because the test value 0.34 is inside the interval (-1.96, 1.96)
D) Yes, because the test value 2.00 is inside the interval (-1.96, 1.96)
Hypothesis Testing
A marketing firm asked a random set of married and single men as to how much they were willing to spend for a vacation. At = .05, is a difference in the two amounts?
Married men Single men
Sample size 50 70
Mean spending 260 185
Sample variance 4500 9000
A) Yes, because the test value 5.07 is outside the interval (-1.96, 1.96)
B) No, because the test value 2.00 is outside the …
The solution provides step by step method for the calculation of test statistic for comparing two population means . Formula for the calculation and Interpretations of the results are also included.
