1. A clinical trial is run to assess the efficacy of a new drug to reduce high blood pressure. Patients with a diagnosis of hypertension (high blood pressure) are recruited to participate in the trial and randomized to receive either the new drug or placebo. Participants take the assigned drug for 12 weeks and their blood pressure status is recorded. At the end of the trial, participants are classified as still having hypertension or not. The data are shown here:GroupNumber RandomizedNumber Free of Hypertension at 12 weeksPlacebo5012New Drug5028What is the prevalence of hypertension at the end of the trial?A)12%B)28%C)60%D)50%

Question
Asked Jan 16, 2020
28 views

1. A clinical trial is run to assess the efficacy of a new drug to reduce high blood pressure. Patients with a diagnosis of hypertension (high blood pressure) are recruited to participate in the trial and randomized to receive either the new drug or placebo. Participants take the assigned drug for 12 weeks and their blood pressure status is recorded. At the end of the trial, participants are classified as still having hypertension or not. The data are shown here:

Group Number Randomized Number Free of Hypertension at 12 weeks
Placebo 50 12
New Drug 50 28


What is the prevalence of hypertension at the end of the trial?
A)12%
B)28%
C)60%
D)50%

check_circle

Expert Answer

Step 1

The prevalence of hypertension at the end ...

Statistics homework question answer, step 1, image 1
fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

Math

Statistics

Other

Related Statistics Q&A

Find answers to questions asked by student like you
Show more Q&A
add
question_answer

Q: Space Mountain You want to estimate σ for the population of waiting times for the Space Mountain rid...

A:  The z-critical value for 99% confidence interval is 2.576.Margin of error, E is 1% of σ. That is, E...

question_answer

Q: Using the Central Limit Theorem. In Exercises 5–8, assume that females have pulse rates that are nor...

A: Central Limit Theorem for mean:If a random sample of size n is taken from a population having mean µ...

question_answer

Q: Regarding linear equations in two or more independent variables: a. Write the general form of such a...

A: a)The general form of linear equation with k independent variables is as follows:

question_answer

Q: Replacement Why does the bootstrap method require sampling with replacement? What would happen if we...

A: Bootstrap method requires only sampling with replacement if sampling is done without replacement, th...

question_answer

Q: Notation In analyzing hits by V-1 buzz bombs in World War II, South London was partitioned into 576 ...

A: The mean number of bombs per region is:

question_answer

Q: Atkins Weight Loss Program In a test of weight loss programs, 40 adults used the Atkins weight loss ...

A: Degrees of freedom:The formula for calculating degrees of freedom is

question_answer

Q: Normal Quantile Plot Data Set 1 “Body Data” in Appendix B includes the heights of 147 randomly selec...

A: Here, the sample size is 147 which is greater than 30. That is n(=147)>30. This indicates that th...

question_answer

Q: Lemons and Car Crashes Using the listed lemon/crash data, find the best predicted crash fatality rat...

A: Regression:The regression analysis is conducted here by using EXCEL. The software procedure is given...

question_answer

Q: Normal Distribution What’s wrong with the following statement? “Because the digits 0, 1, 2,…, 9 are ...

A: In statistics, the term “Normal” has a special meaning. The graph of the normal distribution is bell...