Mathematics, 04.04.2020 04:59, hviland4371
The yield of a chemical process is being studied. From previous experience with this process the standard deviation of yield is known to be 2.9. The past 5 days of plant operation have resulted in the following yields (given in percentages): 91.6, 88.75, 90.8, 89.95 and 91.3%.
A)What is the numerical value of the sample mean yield? Answer to two decimal places.
B)Test the hypothesis that the mean yield is not equal to 90%. Use alpha = .01. What is the numerical value of the test statistic? Answer to two decimal places.
C)If the true population mean yield is 92%, what is beta, the probability of Type II error? Answer to three decimal places. (Remember that this is a 2-sided test and that alpha is .01.)
Answers: 2
Mathematics, 21.06.2019 17:00, trosclairozlynn02
Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?
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Mathematics, 21.06.2019 21:00, samiiegarciia
Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.
Answers: 2
The yield of a chemical process is being studied. From previous experience with this process the sta...
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