Question 2
Travelocity would like to test if the average roundtrip airfare between New York and London is less than $1,400
Answer
H0: μ ≥ $1,400; H1: μ < $1,400.
Comments
Correct!!
Max Score: 4
Actual Score: 4
Question 3
CoStar would like to test if the vacancy rate for warehouse stores is more than 8%. The correct hypothesis state
Answer
H0: π ≤ 0.08; H1: π > 0.08.
Comments
Correct!!
Max Score: 4
Actual Score: 4
Question 4
CoStar would like to test if the vacancy rate for warehouse stores is more than 8%. A Type I error would occur
Answer
more than 8% when, in reality, the proportion was 8% or less.
Comments
Correct!!
Max Score: 4
Actual Score: 4
Question 5
The p-value for a hypothesis test is defined as the probability of observing a
Answer
sample mean at least as extreme as the one selected for the hypothesis test, assuming the null hypo
Comments
Correct!!
Max Score: 4
Actual Score: 4

Question 6
A Type II error is known as the producer's risk because, when it occurs in quality control settings, the producer
Answer
False
Comments
Correct!!
Max Score: 4
Actual Score: 4
Question 7
YouTube would like to test the hypothesis that the average length of an online video watched by a user is more
minutes in length. It is believed that the population standard deviation for the length of online videos is 1.7 min
________.
Answer
Comments
Question 8
Sony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of
while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard
would like to set α = 0.05. The critical value for this hypothesis test would be ________.
Answer
Comments
Question 9
Sony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of
while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard
would like to set α = 0.05. The standard error of the difference between two means for this hypothesis test woul

Answer
Comments
Question 10
Sony would like to test the hypothesis that the average age of a PlayStation user differs from the average age of
while a random sample of 36 Xbox users had an average age of 35.6 years. Assume that the population standard
would like to set α = 0.05. If Population 1 is defined as PlayStation users and Population 2 is defined as Xbox u
Answer
Comments
Question 11

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- Fall '12
- Donnelly
- Normal Distribution, Standard Deviation, Variance, Actual Score, Max Score