Mathematics, 27.03.2020 05:19 Schoolworkspace453
Chegg A manufacturer of submersible pumps claims that at most 30% of the pumps require repairs within the first 5 years of operations. A random sample of 120 of these pumps included 47 which required repairs within the first 5 years. Does the manufacturer’s claim appear to be true, at the 0.05 level of significance?
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The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?
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Mathematics, 21.06.2019 18:20, Karamatullah
The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?
Answers: 1
Chegg A manufacturer of submersible pumps claims that at most 30% of the pumps require repairs withi...
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