Chapter 8 Review
1. What is a sampling distribution?
- The distribution of statistics over repeated sampling.
2. What is sampling error?
- The variability of sample estimates of some statistic such as mean.
3. What is the standard error of mean?
- The sta
1. A teacher wants to assess the impact of praise on childrens ability to solve math problems. He
considers three different praise conditions praise, silence and criticism). Also, he wants to know
if it makes a difference if children solve easy or difficu
Assignment 8
1. You are assessing the work posture of surgeons in two different surgical environments. Work
posture is rated along three categories (low risk of developing skeletomuscular problems,
moderate risk for developing skeletomuscular problems and
Question 1
The ANOVA is a statistical method that stands for analysis of variance, a between subject
one way ANOVA is used when a researcher wants to compare more than three groups. In order to
be able to do that there must be an assumption of normal dist
Assignment 3
1.
Marie is getting married tomorrow at an outdoor ceremony in the desert. In recent years, it has
rained only 5 days each year. Unfortunately, the weatherman has predicted rain for tomorrow.
When it actually rains, the weatherman correctly f
Height
64
66
68
60
62
65
66
63
mean
St. Dev
M
N
df
64.25
2.55
63
8
7
Se
T
Tc
0.902
1.39
2.365
Cd
0.490
1.7
0.7
-0.1
-0.7
-3.5
14.9
3.5
17.1
-7.6
1.6
11.7
6.1
1.1
-4
20.9
-9.1
2.1
-1.4
1.4
-0.3
-3.7
-0.8
2.4
12.6
1.9
3.9
0.1
15.4
-0.7
N
x
st dev
m
se
t
tc