Question
In: Statistics and Probability
A medIV. A medical trial into the effectiveness of a new medication was carried out. 120...
A medIV. A medical trial into the effectiveness of a new medication was carried out. 120 females and 90 males took part in the trial. Out of those people, 50 females and 30 males responded positively to the medication. Given below is a contingency table with the given information filled in. Female Male Total Positive 50 30 Negative 70 60 Total a. What is the probability that a randomly selected person from the sample is a female? b. What is the probability that the medicine gives a positive result for males? c. What is the probability that a randomly selected person from the sample either a female or responded positively to the medication? d. What is the probability that a randomly selected person from the sample is a female given that she is responded positively to the medication? e. Was the medication's success independent of gender? Explain. ical trial into the
Solutions
orchestra answered 1 year agoRelated Solutions
2. A medical trial looking at the effectiveness of a new medication was carried on a...
2. A medical trial looking at the effectiveness of a new
medication was carried on a sample of adults. 100 females and 80
males took part in the trial. Out of those people, 60 females and
50 males responded positively to the medication. Create a
contingency table of the results and answer the following:
a. Who responds better to the medication, men or women?
b. Express the relative effectiveness of the drug between
groups, as a ratio.
c. If you...
A new study compares the effectiveness of a new pain medication to an existing pain medication...
A new study compares the effectiveness of a new pain medication
to an existing pain medication and placebo. Which of the following
best represents the dependent variable and the independent variable
for this study?
The dependent variable is the type of medication dispensed to
the patient and the independent variable is the dosage of the
medication dispensed to the patient.
The dependent variable is a measure of pain experienced by the
patient and the independent variable is a measure of...
Researchers want to test the effectiveness of a new anti-anxiety medication. In clinical testing, 64 out...
Researchers want to test the effectiveness of a new anti-anxiety
medication. In clinical testing, 64 out of 200 people taking
medication report symptoms of anxiety.
Of the people receiving a placebo, 92 out of 200 report symptoms
of anxiety. Is the medication working any differently than the
placebo? Test this claim using alpha = 0.05
Perform all steps of Hypothesis testing, including P-Value
reaffirmation test.
A survey was carried out from 120 radio listeners to see the relationship between age and...
A survey was carried out from 120 radio listeners to see the
relationship between age and radio station. A summary of their
replies is given in the table below
age range
less then 20
20-30
over 30
Commercial
22
16
50
local radio
6
10
16
(i) Formulate the null and alternative hypotheses for the
chi-square test.
(ii) At 10% significance level, calculate the degree of freedom
of the chi-square
test and state the rejection criteria for the null hypothesis...
Suppose a researcher is interested in the effectiveness of a new anti-hypertensive medication in a population...
Suppose a researcher is interested in the effectiveness of a
new anti-hypertensive medication in a population of clinical trial
participants with high blood pressure. In this particular study,
the researchers decide to use each participant as their own
control, offering the participants the study drug either preceding
or proceeding a control period involving best standard of care.
Assume the following sample of participants enrolled in the study
represents an appropriate approximation to the normal
distribution.
Participant
Systolic blood pressure (mmHG)...
In a test of a new medication, 65 out of 98 males and 45 out of...
In a test of a new medication, 65 out of 98 males and 45 out of
85 females responded positively. At the 0.05 level of significance,
can we say that the drug is more effective for males?
evaluation of medication effectiveness for arthritis
evaluation of medication effectiveness for arthritis
evaluation of medication effectiveness of ANTIMICOBACTERIALS
evaluation of medication effectiveness of
ANTIMICOBACTERIALS
A drug company is beginning a new drug trial for a medication that is used to...
A drug company is beginning a new drug trial for a medication
that is used to treat rheumatoid arthritis (RA). Jonna is a
22-year-old female who has had RA for 2 years and does not feel
that she has full relief of pain from the medications she has
taken. She states she has fallen on hard times since she became ill
and the money for the study will also be beneficial. She wants to
participate in the study.
Discuss the...
A drug company is beginning a new drug trial for a medication that is used to...
A drug company is beginning a new drug trial for a medication
that is used to treat rheumatoid arthritis (RA). Jonna is a
22-year-old female who has had RA for 2 years and does not feel
that she has full relief of pain from the medications she has
taken. She states she has fallen on hard times since she became ill
and the money for the study will also be beneficial. She wants to
participate in the study.
1.Describe how...
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