View the step-by-step solution to:

Question

The owner of a coffee shop has found that the amount spent by customers at the

shop is normally distributed with a mean of $6.80 and a variance of 1.44 $2. If a random sample of 25 customers is selected, what is the probability that the average amount spent by this sample of customers will be greater than $7.40?

A. 0.9938

B. 0.0062

C. 0.5319

D. 0.4681

Top Answer

Option B. 0.0062... View the full answer

Sign up to 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.

  • -

    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