Consider an experiment in which a pharmaceutical company is testing a new drug that it hopes will lower cholesterol levels. The scientists administer three treatments: a dose of the drug, a dose of a placebo, and a control group that receives neither drug nor placebo. After 24 hours, they then measured the cholesterol levels and compared the values to baseline levels measured prior to treatment. The table below shows the results of the experiment. Treatment Drug Placebo Control Chol. lower 64 51 48 Chol. increased or the same 36 49 52 To determine whether there appears to be a statistically significant relationship between the treatment and changes in cholesterol level, they would conduct a x2 analysis. When performing this analysis, which of the following best describes the conclusion they could make from the data? These data do not provide sufficient evidence that treatment type is associated with changes in cholesterol level. There is a statistically significant relationship between treatment and changes in cholesterol level; the drug lowers cholesterol more than the other treatments. There is a statistically significant relationship between treatment and changes in cholesterol level; the placebo lowers cholesterol more than the other treatments. There is a statistically significant relationship between treatment and changes in cholesterol level; the control group showed lower cholesterol compared to the other treatments.
Consider an experiment in which a pharmaceutical company is testing a new drug that it hopes will lower cholesterol levels. The scientists administer three treatments: a dose of the drug, a dose of a placebo, and a control group that receives neither drug nor placebo. After 24 hours, they then measured the cholesterol levels and compared the values to baseline levels measured prior to treatment. The table below shows the results of the experiment. Treatment Drug Placebo Control Chol. lower 64 51 48 Chol. increased or the same 36 49 52 To determine whether there appears to be a statistically significant relationship between the treatment and changes in cholesterol level, they would conduct a x2 analysis. When performing this analysis, which of the following best describes the conclusion they could make from the data? These data do not provide sufficient evidence that treatment type is associated with changes in cholesterol level. There is a statistically significant relationship between treatment and changes in cholesterol level; the drug lowers cholesterol more than the other treatments. There is a statistically significant relationship between treatment and changes in cholesterol level; the placebo lowers cholesterol more than the other treatments. There is a statistically significant relationship between treatment and changes in cholesterol level; the control group showed lower cholesterol compared to the other treatments.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Consider an experiment in which a pharmaceutical company is testing a new drug that it hopes
will lower cholesterol levels. The scientists administer three treatments: a dose of the drug, a
dose of a placebo, and a control group that receives neither drug nor placebo. After 24 hours,
they then measured the cholesterol levels and compared the values to baseline levels measured
prior to treatment. The table below shows the results of the experiment.
Treatment
Drug
Placebo
Control
Chol. lower
64
51
48
Chol. increased or the same
36
49
52
To determine whether there appears to be a statistically significant relationship between the
treatment and changes in cholesterol level, they would conduct a x2 analysis. When performing
this analysis, which of the following best describes the conclusion they could make from the
data?
● These data do not provide sufficient evidence that treatment type is associated with changes in
cholesterol level.
There is a statistically significant relationship between treatment and changes in cholesterol level; the
drug lowers cholesterol more than the other treatments.
There is a statistically significant relationship between treatment and changes in cholesterol level; the
placebo lowers cholesterol more than the other treatments.
There is a statistically significant relationship between treatment and changes in cholesterol level; the
control group showed lower cholesterol compared to the other treatments.
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