Find the interquartile Range (Q) for both years. Does Q change in the same way as the standard deviation? Use the 4 steps for interquartile Range that are in the essentials of statistics 4 edition book p: 91 to solve the problem. City 1995 2000 A 180 210 B 95 110 C 87 124 D 101 131 E 52 197 F 117 200 G 115 119 H 88 87 I 85 125 J 100 150 K 167 225 L 101 209 M 120 201 N 78 141 O 107 94 P 55 248 Q 78 140 R 92 131 S 99 152 T 103 178
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Find the
|
City |
1995 |
2000
|
|
A |
180 |
210 |
|
B |
95 |
110 |
|
C |
87 |
124 |
|
D |
101 |
131 |
|
E |
52 |
197 |
|
F |
117 |
200 |
|
G |
115 |
119 |
|
H |
88 |
87 |
|
I |
85 |
125 |
|
J |
100 |
150 |
|
K |
167 |
225 |
|
L |
101 |
209 |
|
M |
120 |
201 |
|
N |
78 |
141 |
|
O |
107 |
94 |
|
P |
55 |
248 |
|
Q |
78 |
140 |
|
R |
92 |
131 |
|
S |
99 |
152 |
|
T |
103 |
178 |
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