E Question Help A variable of two populations has a mean f 60 and a standard...

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E Question Help A variable of two populations has a mean f 60 and a standard deviation of 12 for one of the populations and a mean of 60 and and a mean of 60 and a standard deviation of 6 for the other population Moreover, the vriabie is nomaly distibuted on each of the t populations Complete parts (a) theough (e). a. For independent samples of size 9 and 4, respectively, determine the mean and standand deviation of- The mean of ii -i Type an integer or a decimal. Do not round )

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