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Mathematics, 12.02.2020 00:34 mirandaperez3412
A manufacturer of personal computers sets tests competing brands and finds that the amounts of energy they require are normally distributed with a mean of 285 kwh and a standard deviation of 9.1 kwh. If the lowest 25% and the highest 30% are not included in a second round of tests, what are the upper and lower limits for the energy amounts of the remaining sets?a. [269.76 300.24]b. [278.90, 288.55]c. [280.22 289.78]d. [280.22 300.24]
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A manufacturer of personal computers sets tests competing brands and finds that the amounts of energ...
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