Question

Jesse claims that the average cartoon short is eight minutes long, but Janie disagrees and has...

Jesse claims that the average cartoon short is eight minutes long, but Janie disagrees and has found an average time of 8.5 minutes for a sample of 30 cartoons. Answer each of the following questions.

The population is

A. all cartoon shorts that Jesse has seen
B. the 30 cartoon shorts
C. all cartoon shorts

The claim that Jesse is making about the population mean μ is

A. that it is equal to 8
B. that it is greater than or equal to 8
C. that it is less than or equal to 8
D. that it is not equal to 8

What is x¯?

Which of the following is Janie’s alternative hypothesis?

A. μ≥8
B. μ=8
C. μ≤8
D. μ≠8

Math   Statistics-And-Probability   
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