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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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NERD NERD
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6 years ago
A company claims that the standard deviation in its delivery time is less than 5 days. A sample of 27 past customers is taken. The average delivery time in the sample was 14 days with a standard deviation of 4.5 days. At a 5 level of significance, test the company's claim.
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alarosealarose
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6 years ago
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NERD Author
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6 years ago
Thanks
Natalie Price
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Yesterday
Good timing, thanks!
noodlelicker
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2 hours ago
Thanks
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