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sh is
ar stu
ed d
vi y re
aC s
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ou urc
rs e
eH w
er as
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co
m
Th
https:/www.coursehero.com/file/11294067/STAT-2510-Exam-2/
sh is
STAT2510 Practice Final
Name:
If X B(n, p), then X = n p and X =
If X B(n, p) and p = X/n, then
p
n p (1 p)
r
p = p,
Furthermore,
T =
Z=q
Z=r
p =
x
0
,
s/ n
p p0
s
x
t?
n
r
p z
,
p0 (1p0 )
n
p1 p2
p (1 p) n11 +
s
p1 p2 z ?
p (1 p)
n
1
n2
?
p (1 p)
n
x
Lane et al.
Chapter 5
This is a problem that involves binomial probability distribution. The probability of getting
either a head or tail is 0.5.
We are given the following information: N = 9 & p = 0.5.
P( x = k ) =
N!
p x (1 p) N x
x !( N x)!
P( x = 6)
Lane et al.
Chapter 10
The confidence interval is the percentage of the area under the curve to be considered. A
99% confidence interval has 99% of the total areas under the curve, whereas a 95% confidence
interval has 95% of the total area. Therefore, a
Week 7 Homework
2. a) predicted score for a person scoring a 6 on x is 2 * 6 + 9 =21
b) 14 = 2x + 9, x = (14 9) / 2 = 2.5
6. a) r value = .849, p value = .0324, which indicates r is significantly different than zero. We can
reject the null hypothesis in t