Question 1054768
a. {{{z =blue (63 - 62.6)/blue(2.6)}}}
compute z  and then Find P(x <63) = P(z < z-value found)
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b.  {{{z =blue (63 - 62.6)/blue(2.6/sqrt(48))}}}
compute z  and then Find P(x&#772; <63) = P(z < z-value found)