Mathematics, 24.02.2020 19:46 lettymartinez6842
A random sample of 15 hourly fees for car washers (including tips) was drawn from a normal population. The sample mean and sample standard deviation were = $14.9 and s = $6.75.
Can we infer at the 5% significance level that the mean fee for car washers (including tips) is greater than $12.5?
Can we infer at the 5% significance level that the population mean is greater than $12.5, assuming that you know the population standard deviation is equal to 6.75?
Answers: 2
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The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?
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A random sample of 15 hourly fees for car washers (including tips) was drawn from a normal populatio...
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