3
practice testMultiple Choice

Practice Test

Question 3 • Statistics

A student claims that statistics students at her school spend, on average, an hour doing statistics homework each night. In an attempt to substantiate this claim, she selects a random sample of 6 of the 62 students that are taking statistics currently and asks them how much time they spend completing statistics homework each night. Here are the data (in hours): 0.75,0.75,0.75,0.5,1,1.25 She would like to know if the data provide convincing statistical evidence that the true mean amount of time that statistics students spend doing statistics homework each night is less than one hour. The student plans to test the hypotheses, ratio of cap h sub 0 to mu is equal to 1 versus ratio of cap h sub A to mu is less than 1 , where mu is equal to the true mean amount of time that statistics students spend doing statistics homework each night. Are the conditions for inference met?

Answer
A
Yes, all conditions for inference are met.
B
No, the 10 percent condition is not met.
C
No, the Normal/large sample condition is not met.
D
No, the random condition is not met.
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A student claims that statistics students at her…