A new drug is advertised to have weight loss as a side effect. Weight changes for 13 subjects taking this medication are given. 4 56789 10 11 12 13 Difference -23 -17|-13 |-9 -3 12 456 8 7 11 (a) Find the value of the mean weight change and the value of the median weight change for the thirteen subjects. (Check your work carefully. You have only 3 attempts for this question, and each attempt after the first is penalized 33%. Round your answers to the nearest tenth.) Mean weight change is -1.6 Median weight change is 2 (b) On the exam template, write or type this number: 6 Make a histogram or a stemplot and a boxplot of the data, either by hand or using software. Then answer the following (for each you have 3 attempts and each attempt after the first is penalized 33%). The shape of the distribution is O Roughly symmetric. O Right skewed. O Left skewed. and the distribution has O many outliers O two outliers O no outliers O one outlier (c) Which of the two summary values found in part (a) is a better summary of weight change, and why? O Median, because although some patients lose a significant amount of weight, most patients gain some weight. O Mean, because while most patients gain some weight, some patients lose a significant amount of weight. O Median, because nothing can be said about weight gain or loss on this medication. O Mean, because this medication does not affect weight.
A new drug is advertised to have weight loss as a side effect. Weight changes for 13 subjects taking this medication are given. 4 56789 10 11 12 13 Difference -23 -17|-13 |-9 -3 12 456 8 7 11 (a) Find the value of the mean weight change and the value of the median weight change for the thirteen subjects. (Check your work carefully. You have only 3 attempts for this question, and each attempt after the first is penalized 33%. Round your answers to the nearest tenth.) Mean weight change is -1.6 Median weight change is 2 (b) On the exam template, write or type this number: 6 Make a histogram or a stemplot and a boxplot of the data, either by hand or using software. Then answer the following (for each you have 3 attempts and each attempt after the first is penalized 33%). The shape of the distribution is O Roughly symmetric. O Right skewed. O Left skewed. and the distribution has O many outliers O two outliers O no outliers O one outlier (c) Which of the two summary values found in part (a) is a better summary of weight change, and why? O Median, because although some patients lose a significant amount of weight, most patients gain some weight. O Mean, because while most patients gain some weight, some patients lose a significant amount of weight. O Median, because nothing can be said about weight gain or loss on this medication. O Mean, because this medication does not affect weight.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Transcribed Image Text:A new drug is advertised to have weight loss as a side effect. Weight changes for 13 subjects taking this medication are given.
10 11
12
Difference -23 -17 -13 -9 -3 12 45
8
11
(a) Find the value of the mean weight change and the value of the median weight change for the thirteen subjects. (Check your work carefully. You have only 3 attempts for this question, and
each attempt after the first is penalized 33%. Round your answers to the nearest tenth.)
Mean weight change is -1.6
Median weight change is 2
(b) On the exam template, write or type this number: 6
Make a histogram or a stemplot and a boxplot of the data, either by hand or using software.
Then answer the following (for each you have 3 attempts and each attempt after the first is penalized 33%).
The shape of the distribution is
O Roughly symmetric.
O Right skewed.
O Left skewed.
and the distribution has
O many outliers
O two outliers
O no outliers
O one outlier
(c) Which of the two summary values found in part (a) is a better summary of weight change, and why?
O Median, because although some patients lose a significant amount of weight, most patients gain some weight.
O Mean, because while most patients gain some weight, some patients lose a significant amount of weight.
O Median, because nothing can be said about weight gain
loss on this medication.
O Mean, because this medication does not affect weight.
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