3. The Cov(X) of a random vector X'= (X₁, ..., Xn) is defined as E{(X-E(X))'(X-E(X)}. True or false, give reasoning.

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A: Given,sample size(n)=49sample proportion(p^)=0.45H0:π=0.40Ha:π>0.40and α=0.05

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Q: QUESTION 6 In the hypotheses H:л=0.40, Hл>0.40, at 5 % level of testing significance. if the sample…

A: GivenH0:π=0.40H0:π>0.40α=0.05sample proportion(p^)=0.45sample size(n)=49

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