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Engineering, 15.07.2020 01:01 angellynn581
Twenty-five wooden beams were ordered or a construction project. The sample mean and he sample standard deviation were measured xbar = 190cm, s = 5cm. Calculated confidence interval for the mean is [188.29; 191.71].
Which confidence level was chosen? Assume distribution to be normal.
A. 99%
B. 90%
C. 95%
D. 99.9%
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Twenty-five wooden beams were ordered or a construction project. The sample mean and he sample stand...
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