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Part 1 of 3 (a) Find a point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. The point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.407 Part 2 of 3 (b) Construct a 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. A 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.258

Part 1 of 3 (a) Find a point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. The point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.407 Part 2 of 3 (b) Construct a 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. A 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.258

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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SAT Scores: A college admissions officer sampled 118 entering freshmen and found that 48 of them scored more than 575 on the math SAT. Part 1 of 3 (a) Find a point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. The point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.407 Part 2 of 3 (b) Construct a 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. A 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.258 <p<0556 Part: 2/3 Part 3 of 3 (c) According to the College Board, 36% of all students who took the math SAT in 2009 scored more than 575. The admissions officer believes that the proportion at her university is also 36%. Does the confidence interval contradict this belief? Explain. v contained in the confidence because the value 0.36 is No interval.
Transcribed Image Text:SAT Scores: A college admissions officer sampled 118 entering freshmen and found that 48 of them scored more than 575 on the math SAT. Part 1 of 3 (a) Find a point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. The point estimate for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.407 Part 2 of 3 (b) Construct a 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT. Round the answer to at least three decimal places. A 99.9% confidence interval for the proportion of all entering freshmen at this college who scored more than 575 on the math SAT is 0.258 <p<0556 Part: 2/3 Part 3 of 3 (c) According to the College Board, 36% of all students who took the math SAT in 2009 scored more than 575. The admissions officer believes that the proportion at her university is also 36%. Does the confidence interval contradict this belief? Explain. v contained in the confidence because the value 0.36 is No interval.
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