Mathematics, 08.09.2020 14:01, skatingflower
A consumer electronics company is comparing the brightness of two different types of led screens for use in its television sets. Screen type a has mean brightness of 75 and standard deviation of 8, while screen type b has mean brightness of 70 and standard deviation of 12. A random sample size 36 is selected from screen type a where the sample size for screen type b is 25. Find the approximate probability that x¯ a − x¯ b exceeds 4?
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A consumer electronics company is comparing the brightness of two different types of led screens for...
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