An angle has been observed 25 times. The mean angle p = 2510'35.3with a standard deviation of o = i9. The upper and lower bounds
An angle has been observed 25 times. The mean angle p = 2510'35.3"with a standard deviation of o = i9". The upper and lower bounds of the 95% confidence interval of the standard deviation to three decimal places is: 47:: A. 4.810 4 0.303 B. 7.027 42.520 C 8.771 44.264 D. 7.904 43.397 {:3 E. 7.435 42.927
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