Q1) A) z = (X - ) /
It is given in the question that = 40 and = 8. So, putting the value of X in the above equation and solving for z.
X = 44, z = (44 - 40) / 8 = 4/8 = 0.5 is the answer.
X = 38, z = (38 - 40) / 8 = -2/8 = -0.25 is the answer.
X = 48, z = (48 - 40) / 8 = 8/8 = 1 is the answer.
X = 34, z = (34 - 40) / 8 = -6/8 = -0.75 is the answer.
X = 56, z = (56 - 40) / 8 =16/8 = 2 is the answer.
X = 32, z = (32 - 40) / 8 = -8/8 = -1 is the answer.
B) z = (X - ) /
Now putting the value of z in the above equation and solving for X,
1 = (X - 40) / 8
8 = X - 40
X = 40 + 8 = 48 is the answer.
-0.5 = (X - 40) / 8
-4 = X - 40
X = -4 + 40 = 36 is the answer.
0.25 = (X - 40) / 8
2 = X - 40
X = 2 + 40 = 42 is the answer.
-1.25 = (X - 40) / 8
-10 = X - 40
X = -10 + 40 = 30 is the answer.
1.5 = (X - 40) / 8
12 = X - 40
X = 12 + 40 = 52 is the answer.
-2.5 = (X - 40) / 8
-20 = X - 40
X = -20 + 40 = 20 is the answer.
1. Gravetter/Wallnau/Forzano, Essentials Chapter 5 End-of-chapter question 4 Aa Aa For a population with μ =...
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