Didi’s Cafe wants to make sure that their capuccinos have sufficient amount of espresso. They believe...
Didi’s Cafe wants to make sure that their capuccinos have sufficient amount of espresso. They believe that each capuccino should have an average of at least 8 oz of espresso. If this is not the case, they must increase the amount of espresso. They decided to randomly sample 25 capuccinos and note the sample mean and standard deviation of espresso in these drinks. What is the rejection region for testing at the 0.10 level of significance?
t > 2.064
t > 0.10
t > 1.318
t > 1.711
t > 1.924
Homework Answers
Solution :
n = 25
df = 24
= 0.10
Right tailed test .
the rejection region for testing at the 0.10 level of significance is ,
t 0.10,24 = 1.318
t > 1.318
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