Mathematics, 26.02.2022 05:30 littlesami105
The manager of a computer retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality. His research shows that replacement times for the model laptop of concern are normally distributed with a mean of 3.1 years and a standard deviation of 0.5 years. He then randomly selects records on 49 laptops sold in the past and finds that the mean replacement time is 2.9 years. Assuming that the laptop replacement times have a mean of 3.1 years and a standard deviation of 0.5 years, find the probability that 49 randomly selected laptops will have a mean replacement time of 2.9 years or less.
Answers: 1
Mathematics, 21.06.2019 18:20
Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.
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Mathematics, 21.06.2019 22:50
Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265
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Mathematics, 22.06.2019 04:00
5. divide and simplify if possible. √250x16√2x 6. what is the solution of the equation? √2x+13−5=x
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The manager of a computer retails store is concerned that his suppliers have been giving him laptop...
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