2) The U.S. department of education reported that in 2007, 67% of students enrolled in college or a trade school within 12 months of graduating from high school. In 2010, a random sample of 160 individuals who graduated from high school 12 months prior was selected. From this sample, 102 students were found to be enrolled in college or trade school. points) (20 a. What is your point estimate of the sample proportion of students enrolled in college or a trade school within 12 months of graduating from high school in year 2010? b. What is the standard error of the sample proportion? c. Find the margin of error using a 90% confidence coefficient? d. 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 2010. e. Based on this sample, is there any evidence that this proportion has changed since 2007