A department of education reported that in 2007, 66% of students enrolled in col

Question

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 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 95% 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 95% confidence interval to estimate the actual proportion has a lower limit of

0.616 and an upper limit of 0.759.

b. What is the margin of error for this sample? 0.072.

c. Based on this sample, is there any evidence that this proportion has changed since 2007?

Because the confidence interval found in part a

___________A. dose not include/ B. include

the reported proportion from? 2007, this sample

___________A. provides/ B. does not provides

evidence that this proportion has changed since then.

Explanation / Answer

Note: Since part A and B are already answered, therefore, I am only answering part C.

Ans:

C. Based on this sample, is there any evidence that this proportion has changed since 2007?

Because the confidence interval found in part a include the reported proportion from? 2007, this sample does not provides evidence that this proportion has changed since then

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.