Mathematics, 21.12.2019 03:31 fgcherubin
The yield stress of a random sample of 25 pieces of steel was measured, yielding a mean of 52,800 psi. and an estimated standard deviation of s = 4,600 psi. a. what is the probability that the population mean is less than 50,000 psi? b. what is the estimated fraction of pieces with yield strength less than 50,000 psi? c. is this sampling procedure sampling-by-attributes or sampling-by-variable?
Answers: 2
Mathematics, 21.06.2019 16:20, edjiejwi
An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.
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Mathematics, 21.06.2019 17:30, rjsimpson73
Ined this is due tomorrow and i dont know the answer can you find all the exponents
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Mathematics, 21.06.2019 18:50, brooke0713
Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling
Answers: 1
The yield stress of a random sample of 25 pieces of steel was measured, yielding a mean of 52,800 ps...
Mathematics, 27.10.2019 18:43
Mathematics, 27.10.2019 18:43
Mathematics, 27.10.2019 18:43
Mathematics, 27.10.2019 18:43