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Solved: How common is SAT coaching? A random sample of students who took the SAT college
Chapter 8, Problem 39(choose chapter or problem)
How common is SAT coaching? A random sample of students who took the SAT college entrance examination twice found that 427 of the respondents had paid for coaching courses and that the remaining 2733 had not.14 Construct and interpret a 99% confidence interval for the proportion of coaching among students who retake the SAT.
Questions & Answers
QUESTION:
How common is SAT coaching? A random sample of students who took the SAT college entrance examination twice found that 427 of the respondents had paid for coaching courses and that the remaining 2733 had not.14 Construct and interpret a 99% confidence interval for the proportion of coaching among students who retake the SAT.
ANSWER:Step 1 of 3
Given
Number of students paid for the coaching:
Number of students who didn't pay:
Total number of students:
We need to construct a 99% confidence interval for the proportion of coaching among the students.