Mathematics, 08.11.2019 20:31 genyjoannerubiera
Two different formulas of an oxygenated motor fuel are being tested to study their road octane numbers. the variance of road octane number for formula 1 is o 1.5, and for formula 2 it is 05= 1.2. two random samples of size n1 = 15 and2= 20 are tested, and the mean octane numbers observed are x1 = 88.9 fluid ounces and x2=92.5 fluid ounces. assume normality. what sample size would be required in each population if you wanted to be 95% confident that the error in estimating the difference in mean road octane number is less than 1?
Answers: 2
Mathematics, 21.06.2019 17:50, aaroncx4900
Jace wrote a sentence as an equation. 56 is 14 more than a number. 14+ = 56 which statement best describes jace's work? jace is not correct. the phrase more than suggests using the symbol > and jace did not use that symbol. jace is not correct. he was correct to use addition, but the equation should be 56+ p = 14 jace is not correct. the first number in the sentence is 56, so the equation should start with 56. jace is correct. the phrase more than suggests addition, so jace showed that 14 plus a variable equals 56. o
Answers: 1
Mathematics, 21.06.2019 22:00, lkarroum3733
1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25
Answers: 2
Two different formulas of an oxygenated motor fuel are being tested to study their road octane numbe...
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