SOLUTION: According to the Oxnard College Student Success Committee report in the previous year, we believe that 24% of students struggle in their classes because they don't spend more than

Algebra ->  Probability-and-statistics -> SOLUTION: According to the Oxnard College Student Success Committee report in the previous year, we believe that 24% of students struggle in their classes because they don't spend more than       Log On


   

Question 1197342: According to the Oxnard College Student Success Committee report in the previous year, we believe that 24% of students struggle in their classes because they don't spend more than 8 hours studying independently outside of a 4-unit class. For this year, you would like to obtain a new sample to estimate the proportiton of all Oxnard students who struggle in their classes because they don't study enough outside of the classrooms. You would like to be 99% confident that your estimate is within 4% of the true population proportion. How large of a sample size is required? Do not round mid-calculation.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi  
99% confident ⇒  z = 2.576, 
p = .24,  ME = .04
How large of a sample size is required?
n = %28z%2FME%29%5E2+%28p%281-p%29%29%29
n = %282.576%2F.04%29%5E2+%28.24%28.76%29%29%29 = 756.478 0r sample Size = 757 (always rounding up)
                                               
 = CI	z = value
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576
Wish You the Best in your Studies.