Current New
Mean 270.275 267.5
Variance 76.61474359 97.94871795
Observations 40 40
Hypothesized Mean Difference 0
df 77
t Stat 1.328361594
P(T<=t) one-tail 0.093991211
t Critical one-tail 1.664884538
P(T<=t) two-tail 0.187982421
t Critical two-tail 1.991254363
INTRODUCTION:
Par Inc is the one of big golf equipment manufacturing company. They already have a chain of gulf equipments. But now company wants to introduce new cut resistance golf balls. They want to kind of balls which will be long lasting. For that they make experiments to make it. And after that they make experiments on its performance. They did samples of shouts with new and old golf ball. And try to measure their driving distance. From that they can find out how affective it is. So it is worth or not to produce it.
The procedure used to conduct a hypothesis test about a population proportion is similar ...