Mathematics, 16.12.2019 20:31 sonyfan

Do one of the following, as appropriate. (a) find the critical value z subscript alpha divided by 2zα/2, (b) find the critical value t subscript alpha divided by 2tα/2, (c) state that neither the normal nor the t distribution applies. confidence level 90%; n=23; sigma is known σ is known; population appears to be very skewed. what is the critical value?

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Do one of the following, as appropriate. (a) find the critical value z subscript alpha divided by 2z...