Question regarding the population mean
Let x denote the mean of a random sample of size 25 from the distribution whose p.d.f. is f(x) = (x^3/4) for 0 a) Show that the population mean is 8/5 and variance is (8/75) b) Find P(1.5<=X<=1.65)
a) Show that the population mean is 8/5 and variance is (8/75)
b) Find P(1.5<=X<=1.65)
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When performing a hypothesis test and the population standard deviation is known, what is the p-value for a test-statistic of -1.63? Round your answer to 4 decimal places.
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Let x denote the mean of a random sample of size 25 from the distribution whose p.d.f. is f(x) = (x^3/4) for 0<x<2 and 0 otherwise. Show that the population mean is 8/5 and variance is (8/75)
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