Consider a sample with a mean equal to 40 and a standard deviation equal to 12....

Question

Question

math Statistics-And-Probability

Answer 1

Answer #1

Solution :

(a)

z = (x - $\mu$ ) / $\sigma$ = (53 - 40) / 12 = 1.08

(b)

z = (68 - 40) / 12 = 2.33

(c)

z = (33 - 40) / 12 = -0.58

(d)

z = (9 - 40) / 12 = -2.58

Answer 2

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