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Past experience indicates that the time re- quired for high school seniors to complete a standard- ized test is a normal random variable with a standard deviation of 6 minutes. test the hypothesis that σ = 6 against the alternative that σ < 6 if a random sample of the test times of 20 high school seniors has a standard deviation s = 4.51. use a 0.05 level of significance.
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What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points
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Measure a and b and find their sum. how are the angles related?
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Past experience indicates that the time re- quired for high school seniors to complete a standard- i...
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