Homework Help is Here – Start Your Trial Now!
Math
Probability
In a sample of 5 courses with no support course the average final of 200 students was 70% with a standard deviation of 10%. Calculate a 95% confidence interval for the mean of students who did not take a support course. (Type numbers in Excel without percent sign) (68.61, 71.39) (68.61, 71.38) (68.60, 71.39) (69.96, 70.04) 5 is not larger than 40 so we cannot compute a confidence interval.

In a sample of 5 courses with no support course the average final of 200 students was 70% with a standard deviation of 10%. Calculate a 95% confidence interval for the mean of students who did not take a support course. (Type numbers in Excel without percent sign) (68.61, 71.39) (68.61, 71.38) (68.60, 71.39) (69.96, 70.04) 5 is not larger than 40 so we cannot compute a confidence interval.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
See similar textbooks
icon
Related questions
Question
In a sample of 5 courses with no support course the average final of 200 students was 70% with a standard deviation of 10%. Calculate a 95% confidence interval for the mean of students who did not take a support course. (Type numbers in Excel without percent sign) (68.61, 71.39) (68.61, 71.38) (68.60, 71.39) (69.96,70.04) O 5 is not larger than 40 so we cannot compute a confidence interval.
Transcribed Image Text:In a sample of 5 courses with no support course the average final of 200 students was 70% with a standard deviation of 10%. Calculate a 95% confidence interval for the mean of students who did not take a support course. (Type numbers in Excel without percent sign) (68.61, 71.39) (68.61, 71.38) (68.60, 71.39) (69.96,70.04) O 5 is not larger than 40 so we cannot compute a confidence interval.
A college has decided to add support courses to its statistics classes to assist students. We look at the next semester to determine if the addition of the support courses assisted students. In a sample of 4 courses with support courses the average final grade of 160 students was 78% with a standard deviation of 2%. Calculate a 95% confidence interval for the population mean of students who took a support course. (Type numbers in Excel calculator without percent sign) (77.69, 78.31) O (77.70, 78.30) (77.69,78.30) (77.68,78.31) 4 is not larger than 40 so we cannot compute a confidence interval.
Transcribed Image Text:A college has decided to add support courses to its statistics classes to assist students. We look at the next semester to determine if the addition of the support courses assisted students. In a sample of 4 courses with support courses the average final grade of 160 students was 78% with a standard deviation of 2%. Calculate a 95% confidence interval for the population mean of students who took a support course. (Type numbers in Excel calculator without percent sign) (77.69, 78.31) O (77.70, 78.30) (77.69,78.30) (77.68,78.31) 4 is not larger than 40 so we cannot compute a confidence interval.
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS