/9 points 888ssicStats 32.017 My evlar epoxy is a material used on the NASA spac
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Question
/9 points 888ssicStats 32.017 My evlar epoxy is a material used on the NASA space shuttles. Strands of this epoxy were tested at the 90% breaking strength. The following data represent time to failure (in ours) for a random sample of 50 epoxy strands. Let x be a random vanable representing time to failure (in hours) at 90% breaking strength. 0.52 1.80 1.52 2.05 1.03 1.18 0.80 1.33 1.29 1.15 3.34 1.54 0.08 0.12 0.60 0.72 0.92 1.05 1.43 3.05 1.81 2.17 0.63 0.56 0.03 0.09 0.18 0.34 1.51 1.45 1.52 0.19 1.55 0.01 0.07 0.65 0.40 0.24 1.51 1.45 1.60 1.80 4.69 0.08 7.89 1.58 1.65 0.03 0.23 0.72 (a) Find the range. 7.88 (b) use a calculator to calculate Lr and 12.(Round your answers to two decimal places.) Ex2Explanation / Answer
solution:-
given values are
0.52,1.80,1.52,2.05,1.03,1.18,0.80,1.33,1.29,1.15,3.34,1.54,0.08,0.12,0.60,0.72,0.92,1.05,1.43,3.05,1.81,2.17,0.63,0.56,0.03,0.09,0.18,0.34,1.51,1.45,1.52,0.19,1.55,0.01,0.07,0.65,0.40,0.24,1.51,1.45,1.60,1.80,4.69,0.08,7.89,1.58,1.65,0.03,0.23,0.72
a.range
from that the lowest values is 0.01
the highest values is 7.89
the range is 7.89 - 0.01 = 7.88
b.
x = 1.33
x2 = 1.78
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