Question: 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 t

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?

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