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Echo009
10.03.2020 •
Mathematics
The following data are the joint temperatures of the O-rings (oF) for each test firing or actual launch of the space shuttle rocket motor (from Presidential Commission on the Space Shuttle Challenger Accident, Vol. 1, pp. 129-131) 84, 49, 61, 40, 83, 67, 45, 66, 70, 69, 80, 58, 68, 60, 67, 72, 73, 70, 57, 63, 70, 78, 52, 67, 53, 67, 75, 61, 70, 81, 76, 79, 75, 76, 58, 31. Set aside the smallest observation (31oF) and re-compute the sample mean and sample standard deviation. Note the difference from the answers in part 1. Round your answers to 2 decimal places.
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Ответ:
Sample mean = 65.86
Sample standard deviation, s = 12.16
Step-by-step explanation:
We are given the following in the question:
84, 49, 61, 40, 83, 67, 45, 66, 70, 69, 80, 58, 68, 60, 67, 72, 73, 70, 57, 63, 70, 78, 52, 67, 53, 67, 75, 61, 70, 81, 76, 79, 75, 76, 58, 31
Formula:
where
are data points,
is the mean and n is the number of observations.
Sum of squares of differences = 5174.30
Ответ:
no thanks by
Step-by-step explanation: