What is the z-value for a two-sided hypothesis test on a population mean when a=.05?   1. 1.645   2. 2.58   3. 2.33   4. 1.96

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A: From the provided information, The confidence interval is (0.044, 0.094).

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A: a) The problem follows Poisson Distribution with mean 12       P(X&lt;7) = 0.0458

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A: Given,n=818x=504p^=xnp^=504818=0.6161α=0.01

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A: Given that

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A: Givensample size(n)=45Mean(x)=6.4%=0.064standard deviation(s)=1.3%=0.013

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A: * SOLUTION :-  (B)   From the given information the answer is provided as below as ,

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A: Find mode  Mode=L+(f1-fo)/(2*f1-fo-f2)*h

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A: As per company guidelines I solved exactly three subparts of the question.thank you

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