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Midterm

STAT141 Study Guide - Midterm Guide: Confidence Interval, Variance, Descriptive Statistics


Department
Statistics
Course Code
STAT141
Professor
James Muriithi
Study Guide
Midterm

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Descriptive statistics
Descriptive statistics
Study Hours
Score
count
20
20
mean
4.35
70.00
sample standard deviation
2.62
19.00
sample variance
6.87
361.05
minimum
0
40
maximum
8
96
range
8
56
standard error of the mean
0.59
4.25
confidence interval 95.% lower
3.12
61.11
confidence interval 95.% upper
5.58
78.89
z
1.96
1.96
skewness
-0.33
-0.39
kurtosis
-1.16
-1.05
coefficient of variation (CV)
60.26%
27.14%
normal curve GOF
p-value
.1353
.4724
chi-square(df=2)
4.00
1.50
E
4.00
4.00
O(-0.84)
6
5
O(-0.25)
1
2
O(+0.25)
5
4
O(+0.84)
3
5
O(inf.)
5
4
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