Mathematics, 14.12.2019 02:31 genyjoannerubiera
Tensile strength tests were performed on two different grades of aluminum spars used in manufacturing the wing of a commercial transport aircraft. from past experience with the spar manufacturing process and the testing procedure, the standard deviations of tensile strengths are assumed to be known. the data obtained are as follows:
n_1 = 10 and x_1 = 87.6 sigma_1 = 1 and n_2 = 12 x^2 = 74.5 sigma_2 = 1.5. if mu_1 and mu_2 denote the true mean tensile strengths for the two grades of spars. construct a 90 percentage confidence interval on the .difference in mean strength.
Answers: 2
Mathematics, 21.06.2019 20:00, lattimorekeonna1
Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible
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Mathematics, 21.06.2019 21:30, Diazvictoria
Worth 15 points handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony? a= p = 1/4 b= p+0.25p c=(p + 1/4)p d=5/4p 0.25p choose 2 answers
Answers: 1
Tensile strength tests were performed on two different grades of aluminum spars used in manufacturin...
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