Mathematics, 15.02.2021 21:50 Skylynn11
A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 15 years with a standard deviation of 5 years. If the claim is true, in a sample of 37 wall clocks, what is the probability that the mean clock life would differ from the population mean by greater than 1.2 years
Answers: 1
Mathematics, 21.06.2019 18:00, CarQuestionl506
If a translation of t-3,-8(x, y) is applied to square abcd what is the y-coordinate of b'? the y-coordinate of is 43 mark this and return save and exit next submit
Answers: 1
Mathematics, 21.06.2019 19:40, evarod
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
Mathematics, 21.06.2019 22:30, alliaespino
Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.
Answers: 1
Mathematics, 21.06.2019 22:30, sanociahnoel
Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?
Answers: 3
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