Psychologists want to estimate the mean attention time given to twins per week by their parents. A sample of 86 sets of twin boys is taken and the attention time given to them by their parents in a week is recorded. The results are a mean time of 33.71 hours with a standard deviation of 5.33 hours. Construct a 99% confidence interval for the population mean attention time given all twins.
Psychologists want to estimate the mean attention time given to twins per week by their parents. A sample of 86 sets of twin boys is taken and the attention time given to them by their parents in a week is recorded. The results are a mean time of 33.71 hours with a standard deviation of 5.33 hours. Construct a 99% confidence interval for the population mean attention time given all twins.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![Psychologists want to estimate the mean attention time given to twins per week by their parents. A sample of 86 sets of twin boys is taken, and the attention time given to them by their parents in a week is recorded. The results are a mean time of 33.71 hours with a standard deviation of 5.33 hours.
Construct a 99% confidence interval for the population mean attention time given all twins.
Round your answers to two decimal places.
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Transcribed Image Text:Psychologists want to estimate the mean attention time given to twins per week by their parents. A sample of 86 sets of twin boys is taken, and the attention time given to them by their parents in a week is recorded. The results are a mean time of 33.71 hours with a standard deviation of 5.33 hours.
Construct a 99% confidence interval for the population mean attention time given all twins.
Round your answers to two decimal places.
\[ \boxed{} < \mu < \boxed{} \]
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