A new drug study was conducted by a drug company. In the study, 10 people were chosen at random to take Vitamin X for 3 months and then have their cholesterol levels checked. In addition, 10 different people were randomly chosen to take Vitamin Y for 3 months and then have their cholesterol levels checked. All 20 people had cholesterol levels between 8 and 10 before taking one of the vitamins. The drug company wanted to see which of the 2 vitamins had the greatest impact on lowering people's cholesterol. The following data was
A new drug study was conducted by a drug company. In the study, 10 people were chosen at random to take Vitamin X for 3 months and then have their cholesterol levels checked. In addition, 10 different people were randomly chosen to take Vitamin Y for 3 months and then have their cholesterol levels checked. All 20 people had cholesterol levels between 8 and 10 before taking one of the vitamins. The drug company wanted to see which of the 2 vitamins had the greatest impact on lowering people's cholesterol. The following data was
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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Transcribed Image Text:7. A new drug study was conducted by a drug company. In
the study, 10 people were chosen at random to take
Vitamin X for 3 months and then have their cholesterol
levels checked. In addition, 10 different people were
randomly chosen to take Vitamin Y for 3 months and
then have their cholesterol levels checked. All 20 people
had cholesterol levels between 8 and 10 before taking
one of the vitamins. The drug company wanted to see
which of the 2 vitamins had the greatest impact on
lowering people's cholesterol. The following data was
collected:
Vitamin X 7.27.5 5.2 6.5 7.7 10 6.47.6 7.77.8
Vitamin Y 4.8 4.44.5 5.1 6.5 8.03.1 4.6 5.2 6.1
(a) Draw a box-and-whisker plot for both sets of data on the
same number line.
(b) Use the double box-and-whisker plots to compare the 2
vitamins and provide a conclusion for the drug company.
(e) State the skewness of both distributions and justify your
answer.
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