Stats Solutions

[See Solution] In the movie "When Harry Met Sally" , there is a scene where Meg Ryan is shopping for a Christmas tree. The film shows a beautiful snowy

Question: (10 points total)

In the movie "When Harry Met Sally" , there is a scene where Meg Ryan is shopping for a Christmas tree. The film shows a beautiful snowy night in New York city and Meg Ryan dragging her tree back to her apartment. Suppose the mean height of a sample of n=15 Christmas trees was \[\bar{X}\] = 143 cm. Assume that the population of tree heights is normal with known standard deviation σ =18 cm.

1a. (5 points) Construct a 90% confidence interval estimate of the unknown mean μ.

1b. (5 points) Have a look at the CI that you constructed in answering question #1a. On the basis of its lower bound, is it reasonable to say that the average tree height in the population is at least 130 cm? Explain.

Price: $2.99
Solution: The downloadable solution consists of 1 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in