2.5?Hypothesis Testing?Suppose we have a setof sample data {X1, X2, …, X 10} from a normal distribution with mean μ and variance 2 . We want to use the t statistic to test whether the sample mean is equal to a certain value μ=5. Now we construct the null hypothesis and aitemative hypothesis:Null hypothesis Ho: μ=5Alternative hypothesis H 1: μ≠ 5It is known that this set of sample data is (4,8,5,1,5,3,4,9,5,2,5,0,4.7,5,4,5,1,4,9). Based on the sample mean and sample standard deviation, calculate

For some data x1, x2, ..... xn with respective frequencies f1, f2, .... fn, the value of ∑1nfi(xi-x¯) is equal to ______. - Mathematics | Shaalaa.com

9. Let X1​ and X2​ be discrete random variables with joint pdf ... | Filo

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