40/50=0.8
0.8*100=80%
Hope this helps!
Answer:
The 90% confidence interval for population mean length of eastern rods is (23.73, 24.07).
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for population mean when the population standard deviation is not known is:
The information provided is:
Compute the 90% confidence interval for population mean length of eastern rods as follows:
Thus, the 90% confidence interval for population mean length of eastern rods is (23.73, 24.07).
6*2.54
15.24
You can just multiply these should be easy since they give you how many centimeters are in an inch.
Answer:
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Step-by-step explanation:
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