The time spent on volunteer activities varies within a group of students. A particular group of students has an average of 2 hours per week spent on volunteering, and the SD is 3 hours. Clearly the histogram does not follow the normal curve; in fact it is quite skewed to the right, with many students spending zero hours towards volunteering and some students spending many more hours on it. If we randomly select 100 students from this group and calculate the average length of time spent towards volunteering among this random sample, what is the approximate chance that this average is greater than 2.5 hours? a. We shouldn't do this calculation at all, since the data don't follow the normal curve. b. About 5% c. About 0.5% d. About 1%
The time spent on volunteer activities varies within a group of students. A particular group of students has an average of 2 hours per week spent on volunteering, and the SD is 3 hours. Clearly the histogram does not follow the normal curve; in fact it is quite skewed to the right, with many students spending zero hours towards volunteering and some students spending many more hours on it. If we randomly select 100 students from this group and calculate the average length of time spent towards volunteering among this random sample, what is the approximate chance that this average is greater than 2.5 hours? a. We shouldn't do this calculation at all, since the data don't follow the normal curve. b. About 5% c. About 0.5% d. About 1%
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The time spent on volunteer activities varies within a group of students. A particular group of students has an average of 2 hours per week spent on volunteering, and the SD is 3 hours. Clearly the histogram does not follow the normal curve; in fact it is quite skewed to the right, with many students spending zero hours towards volunteering and some students spending many more hours on it.
If we randomly select 100 students from this group and calculate the average length of time spent towards volunteering among this random sample, what is the approximate chance that this average is greater than 2.5 hours?
a. We shouldn't do this calculation at all, since the data don't follow the normal curve.
b. About 5%
c. About 0.5%
d. About 1%
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