A nutritionist took a random sample of 60 college students at Harvard and made a 95% confidence interval for the average calories consumed in a day.  The interval that the researcher obtained was 2350 to 2620.  A) about 95% of the population of students at Harvard is between 2350 and 2620, true or false? B) if the nutritionist had taken a sample of 100 college students.  Would the 95% confidence interval with n= 100 be wider or narrower than the 95% confidence interval with n= 60 students?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
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A nutritionist took a random sample of 60 college students at Harvard and made a 95% confidence interval for the average calories consumed in a day.  The interval that the researcher obtained was 2350 to 2620. 

A) about 95% of the population of students at Harvard is between 2350 and 2620, true or false?

B) if the nutritionist had taken a sample of 100 college students.  Would the 95% confidence interval with n= 100 be wider or narrower than the 95% confidence interval with n= 60 students?

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