View the step-by-step solution to:

Scenario C : Your local public library reported last year that the average number of children visiting the library each day was 77. You would like to...

Scenario C: Your local public library reported last year that the average number of children visiting the library each day was 77. You would like to test whether that has changed.


1.    Now consider Scenario C. You randomly choose 25 days and count the number of children visiting the library on those days. The average for your sample is 63. You also know that the population standard deviation for children visiting the library is 29. Test whether the number of children visiting the library has changed from the previous year using .



2.    Why do we say "we fail to reject the null hypothesis" instead of "we accept the null hypothesis"?



3.    What do we call the probability of a Type I error?

Top Answer

Question 1 (1) Null and Alternative Hypotheses The following null and alternative hypotheses need to be tested: Ho: μ = 77... View the full answer

Sign up to view the full answer

Other Answers

Ho:  μ  = 77 Ha:  μ ≠  77 Z = -2.41 (approx.) Z (0.025) =  ±  1.96 Reject the Ho and... View the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question
Ask a homework question - tutors are online