An Srs Of 40 San Diego County Schools Graduates Showed That 26 Of The 40 Enrolle

An SRS of 40 San Diego County Schools graduates showed that 26 of the 40 enrolled in a college or university right out of high school.

a. Find a 90% confidence interval for the proportion of all San Diego County Schools graduates who enrolled in a college or university right out of high school. Be sure to justify the formula (assumptions/conditions).

b. The proportion for all graduates across the nation who enroll in a college or university right out of high school is 52%. Is there enough evidence at the 5% significance level to suggest that the proportion of San Diego County graduates is greater than the national average? Be sure to include all the parts of the test.

Prof. Angela

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