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Flashcard BUS 308 Week 3 Assignments 7.11, 7.30, 8.8 and 8.38
Week 3 Assignment
BUS308: Statistics for Managers
7.11
a.
The sample mean is normally distributed. No, we do not have to make any assumptions about the shape of the population because the sample size is larger (> 30).
b.u2 = 20, 4 = 4/642 - 4/8 = .5
c.= .0228
Mega Stat:
normal distribution
P(lower)
P(upper)
z
X
mean
std.dev
.9772
.0228
2.00
21
20
0.5
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