BANA 3363 SET 2 EXAM QUESTIONS WITH CORRECT ANSWERS UPDATED!!!
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BANA 3363
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BANA 3363
BANA 3363 SET 2 EXAM QUESTIONS WITH CORRECT ANSWERS UPDATED!!!
How does hypothesis testing differ from constructing confidence intervals, in general? Read carefully. - Answer-A hypothesis test examines the evidence in the data for a specified value or "guess" of the parameter chosen by the researc...
BANA 3363 SET 2 EXAM QUESTIONS
WITH CORRECT ANSWERS
UPDATED!!!
How does hypothesis testing differ from constructing confidence intervals, in general?
Read carefully. - Answer-A hypothesis test examines the evidence in the data for a
specified value or "guess" of the parameter chosen by the researcher, while a
confidence interval gives a range of "reasonable" values for the parameter based on the
data.
A researcher wants to study sports-watching behavior of young men. In a random
sample of young adult men between 20-30 years old, each man was asked how many
minutes of sports he watched on TV daily. The researcher wishes to test whether the
mean amount of television watched daily by young men is greater than 50 minutes.
Which of the following is the correct specification of the alternative hypothesis? -
Answer-H subscript 1 : italic mu greater than 50
A researcher wants to study sports-watching behavior of young men. In a random
sample of young adult men 20-30 years old, each man was asked how many minutes of
sports he watched on TV daily. The researcher wishes to test whether the mean amount
of television watched daily by young men is greater than 50 minutes.
What would be a Type I error, in the context of this problem? - Answer-The researcher
concludes that the mean amount of television watched by young men is greater than 50,
when the mean is really less than or equal to 50.
A researcher wants to study sports-watching behavior of young men. In a random
sample of 30 young adult men 20-30 years old, each person was asked how many
minutes of sports he watched on TV daily. The researcher wishes to test whether the
mean amount of television watched daily by young men is greater than 45 minutes.
Suppose the sample mean is 52.3 and the sample standard deviation is 6.9. Calculate
the test statistic to two decimal places. - Answer-NOT: 4.37
Dr. Mack Lemore, an expert in consumer behavior, wants to estimate the average
amount of money that people spend in thrift shops. He takes a small sample of 8
individuals and asks them to report how much money they had in their pockets the last
time they went shopping at a thrift store. Here is the data:
He wishes to test the null hypothesis that the average amount of money people have in
their pockets is equal to $20. Calculate the test statistic to two decimal places. Take all
calculations toward the answer to three decimal places. - Answer--2.40
, The manufacturer of Twitchy Energy Drink is doing a quality inspection to make sure
that the caffeine content of the drink is meeting specifications of 79.5 mg per can.
Suppose a quality inspector takes a sample of size 14 from the production line and finds
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