A department of education reported that in 2007, 65% of students enrolled in col
ID: 2933226 • Letter: A
Question
A department of education reported that in 2007,
65%
of students enrolled in college or a trade school within 12 months of graduating from high school. In 2013, a random sample of
320
individuals who graduated from high school 12 months prior was selected. From this sample,
244
students were found to be enrolled in college or a trade school. Complete parts a through c below.
a. Construct a
90%
confidence interval to estimate the actual proportion of students enrolled in college or a trade school within 12 months of graduating from high school in 2013.A
90%
confidence interval to estimate the actual proportion has a lower limit of
nothing
and an upper limit of
nothing.
(Round to three decimal places as needed.)
Explanation / Answer
The statistical software output for this problem is:
One sample proportion summary confidence interval:
p : Proportion of successes
Method: Standard-Wald
90% confidence interval results:
Hence,
a) 90% confidence interval will be:
Lower limit = 0.723
Upper limit = 0.802
Proportion Count Total Sample Prop. Std. Err. L. Limit U. Limit p 244 320 0.7625 0.02378903 0.72337053 0.80162947Related Questions
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