t-Test: Two-Sample Assuming Unequal Variance

	Current Process	New Process
Mean	63.15	48.15
Variance	104.2394737	60.87105263
Observations	20	20
Hypothesized Mean Difference	0
df	36
tStat	5.220581451
P(T<=t) one-tail	3.82255E-06
tCritical one-tail	1.688297714
P(T<=t) two-tail	7.64509E-06
tCritical two-tail	2.028094001

• What is the hypothesis in this scenario?
• Did the new fuel process take less or more time? How do you know?
• In the scenario, did you conduct a one or two-tailed test?
• What is thep-value? (Remember to interpret what the E-06 means and round to 3 decimal places)
• Do you think (as Freddy does) that the result is not statistically significant?
• Do the results "prove" anything?