Car Wet Pavement Dry Pavement 1 211 145 2 191 152 3 220 141 4 207 143 5 198 131
ID: 3231922 • Letter: C
Question
Car
Wet Pavement
Dry Pavement
1
211
145
2
191
152
3
220
141
4
207
143
5
198
131
6
208
148
7
206
126
8
177
140
9
186
135
10
223
133
As the researcher used a very small sample size we must verify that the distribution of differences is Normally distributed. Use your boxplot to verify that this condition has been satisfied.
Car
Wet Pavement
Dry Pavement
1
211
145
2
191
152
3
220
141
4
207
143
5
198
131
6
208
148
7
206
126
8
177
140
9
186
135
10
223
133
Options (2 of 2) 40 Boxplot of Wet Pavement Dry Pavement Difference Wet Pavement Dry Pavement Green marker indicates the sample mean 60 50 70 Wet Pavement Dry Pavement 80 90Explanation / Answer
If the median indicator line is exactly middle of the box then the distribution of the data follows Normal (symmetric) distribution.
From the BOX plot, we can observe that, the median line is approximately indicates at the middle of the box and minimum and maximum values are also approximately falls in the same distance. So the distribution of the given data differences is Normally distributed.
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