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Scores on a certain test are normally distributed with a variance of 88. a researcher wishes to estimate the mean score achieved by all adults on the test. find the sample size needed to assure with 95 percent confidence that the sample mean will not differ from the population mean by more than 3 units.
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Evaluate the expression for the given value of the variable. 5×(h+3) for h=7
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What is the value of x in the following equation. -x ^3/2 = -27
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Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality
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Select the conic section that represents the equation. 3x2 + 3y2 -2x + 4 = 0
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Scores on a certain test are normally distributed with a variance of 88. a researcher wishes to esti...
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