SOLUTION: 6. In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the true proportion of high school seniors that will

Algebra ->  Probability-and-statistics -> SOLUTION: 6. In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the true proportion of high school seniors that will       Log On


   

Question 1073831: 6. In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the true proportion of high school seniors that will attend college in the fall from the population.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!

On your TI-84

Press STAT
Use right arrow to scroll over to highlight TESTS
Use down arrow to scroll down to A:1-PropZInt...
Press ENTER

Make the screen read
x:14 
n:35
C-Level:0.95
Calculate

highlight  Calculate

Press ENTER

See this:

(.2377,.5623)
p(hat)=.4
n=35

The confidence interval is 0.2377 < p < 0.5623

Between 23.77% and 56.23%

Edwin