Mathematics, 14.04.2020 23:18 ineedhelpplz40
Normal
μ 2.23
σ 0.28
xi P(X<=xi)
1.61 0.0134
1.76 0.0466
2.39 0.7161
2.53 0.8580
P(X<=xi) xi
0.10 1.8712
0.20 1.9943
0.30 2.0832
0.40 2.1591
Normal
μ 2.23
σ 0.21
xi P(X<=xi)
1.61 0.0016
1.76 0.0126
2.39 0.7769
2.53 0.9234
P(X<=xi) xi
0.10 1.9609
0.20 2.0533
0.30 2.1199
0.40 2.1768
The mean weight for a part made using a new production process is 2.23 pounds. Assume that a normal distribution applies and that the standard deviation is 0.28 pounds. Based on this paragraph of text, use the correct excel output above to answer the following question.
The probability is .80 that weight for a part (in pounds) made using the new production process will be between two values equidistant from the mean. Find the upper value (in pounds).
a) 2.5888 b) 2.3009 c) 2.2832 d) 2.4991 e) None of the answers is correct
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Normal
μ 2.23
σ 0.28
xi P(X<=xi)
1.61 0.0134
1.76 0.0466
2.3...
μ 2.23
σ 0.28
xi P(X<=xi)
1.61 0.0134
1.76 0.0466
2.3...
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