2. The following data are the joint temperatures of the O-rings (degree F) for e

Question

2. The following data are the joint temperatures of the O-rings (degree F) 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. i. Construct a frequency distribution diagram. ii. Calculate and show the percentiles with relative frequency and cumulative frequency in your diagram.

Explanation / Answer

(i)

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(ii)

Data lower upper midpoint width frequency 31 < 41 36 10 2   41 < 51 46 10 2   51 < 61 56 10 6   61 < 71 66 10 14   71 < 81 76 10 9   81 < 91 86 10 3   36  

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