Question 950199: In a survey of nursing students pursuing a master's degree, 75% stated that they expect to be promoted to a higher position within one month after receiving the degree. If this percentage holds for the entire population, find, for a sample of 15, the probability that the number expecting a promotion within a month after receiving their degree is between six and nine, inclusive.
a. 0.1484
b. 0.1476
c. 0.1442
d. 0.0007949
e. 0.0034
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! In a survey of nursing students pursuing a master's degree, 75% stated that they expect to be promoted to a higher position within one month after receiving the degree. If this percentage holds for the entire population, find, for a sample of 15, the probability that the number expecting a promotion within a month after receiving their degree is between six and nine, inclusive.
------
Binomial Problem with n = 15 and p(expect) = 0.75
P(6<= x <=9) = binomcdf(15,0.75,9) - binomcdf(15,0.75,5) = 0.0910
-------------
Not sure where you could have gotten the list below.
cheers,
Stan H.
-----------------
a. 0.1484
b. 0.1476
c. 0.1442
d. 0.0007949
e. 0.0034
|
|
|
