Post a New Question

statistics

posted by on .

The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly picked years will be less than 90.8 inches?

  • statistics - ,

    Z = (score-mean)/SEm

    SEm = SD/√n

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to the Z score.

  • statistics - ,

    78

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question