A sample of 20 glass bottles of a particular type was selected, andthe internal pressure strength of each bottle was determined.
Consider the following partial sample information:
median= 202.2
lower fourth= 196.0
upper fourth= 216.8
three smallest observation 125.8 188.1 193.7
three largest observations 221.3 230.5 250.2
a. Are there any outliers in the sample? Any extreme outliers?
b. Construct a boxplot that shows outliers, and comment on anyinteresting features
median= 202.2
lower fourth= 196.0
upper fourth= 216.8
three smallest observation 125.8 188.1 193.7
three largest observations 221.3 230.5 250.2
a. Are there any outliers in the sample? Any extreme outliers?
b. Construct a boxplot that shows outliers, and comment on anyinteresting features
1 answer:
Answer:
Yes, there is one outlier (lower)
Step-by-step explanation:
Looking at the distribution of the lower/smallest observation, we can see that there is a values in the lower/smallest that is very far from others. See the attached box-plot for understanding.
The median is the line in the middle of the box-plot.
The Lower fourth is the lower whisker line and upper fourth is the upper whisker line. The lower box (just below the median) line is the 1st quartile and the upper box line (just above the median) is 3rd quartile.
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Answer:
Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.
Explanation:
Marks received by Marta in four tests = 86, 84, 97 and 89
Let mark received in fifth test be x
We have average of five test is more than or equal to 90
So we have
So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.