A country's education department reported that in2015,66.8%
of students enrolled in college or a trade school within 12months of graduating high school. In 2017, a random sample of171individuals who graduated from high school12months prior was selected. From this sample,108 students were found to be enrolled in college or a trade school.
a. Construct a90%confidence interval to estimate the actual proportion of students enrolled in college or a trade school within 12months of graduating from high school in 2017.
Ans:
sample proportion=108/171=0.6316
90%confidence interval for true proportion
=0.6316+/-1.645*sqrt(0.6316*(1-0.6316)/171)
=0.6316+/-0.0607
=(0.5709, 0.6923)
A country's education department reported that in2015,66.8% of students enrolled in college or a trade school...
A department of education reported that in 2007, 66% 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, 236 students were found to be enrolled in college or a trade school. Complete parts a through c below. a. Construct a 95% confidence interval to estimate the actual proportion of students enrolled...
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A department of education reported that in 2007, 68% of students enrolled in college or a trade school within 12 months of graduating from high school. In 2013, a random sample of 160 individuals who graduated from high school 12 months prior was selected. From this sample, 110 students were found to be enrolled in college or a trade school. Complete parts a through c below. a. Construct a 99% confidence interval to estimate the actual proportion of students enrolled...
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