A charity has found that 42% of all donors from last year will donate again this year.
Question:
a. What is the standard error of the sample proportion who will donate again this year?
b. What is the probability that more than half of these sample members will donate again this year?
c. What is the probability that the sample proportion is between 0.40 and 0.45?
d. Without doing the calculations, state in which of the following ranges the sample proportion is more likely to lie: 0.39 to 0.41, 0.41 to 0.43, 0.43 to 0.45, or 0.45 to 0.46.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Statistics For Business And Economics
ISBN: 9780132745659
8th Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
Question Posted: