SAT score: A college admission officer sampled 120 entering freshmen and found that 42 of them scored more than 550 the math SAT. a. Find a point estimate for the proportion of all entering freshmen...

SAT score: A college admission officer sampled 120 entering freshmen and found that 42 of them scored more than 550 the math SAT.

a. Find a point estimate for the proportion of all entering freshmen at this college who scored more than 550 on the math SAT.

b. Construct a 98% confidence interval for the proportion of all entering freshmen at this college who score more than 550 on  math SAT.