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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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apple321 apple321
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A year ago
A group of biologists wish to study the life span of the common housefly. They want to estimate the mean life span with 80% confidence and a width on the interval of estimation no greater than 1 hr. How many samples should they draw if a previous study indicates that the standard deviation of life span is 2.43 hr?


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Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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yolinessyoliness
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A year ago
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apple321 Author
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A year ago
You make an excellent tutor!
SupremeDJ
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Yesterday
Good timing, thanks!
kiara23247843
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2 hours ago
this is exactly what I needed
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