A clinical trial tests three dosages of a new allergy medication on 210210 patients. Group M receives 2020 mg\text{mg}, Group N receives 1010 mg\text{mg}, and Group O receives a placebo. After 66 months, 5050 patients remain in Group M, 4747 in Group N, and 4343 in Group O. Of those, 3131 in Group M, 2121 in Group N, and 88 in Group O report no allergy symptoms. Draw a conditional bar graph by group showing the proportion of patients who reported no symptoms and those who did. What does the graph suggest?

Group M has the highest proportion of symptom-free patients, suggesting 2020 mg\text{mg} is most effective.

Group N has the highest proportion of symptom-free patients, suggesting 1010 mg\text{mg} is most effective.

Table of contents

Prepare for your exams

Upload your syllabus and get recommendations on what to study and when. No syllabus? Sharing your exam schedule works too.

Skip topic navigation

1. Intro to Stats and Collecting Data(0)

Intro to Stats
(0)

Levels of Measurement
(0)

Intro to Collecting Data
(0)

Sampling Methods
(0)

2. Describing Data with Tables and Graphs(0)

Visualizing Qualitative vs. Quantitative Data
(0)

Frequency Distributions
(0)

Histograms
(0)

Bar Graphs and Pareto Charts
(0)

Pie Charts
(0)

Frequency Polygons
(0)

Dot Plots
(0)

Stemplots (Stem-and-Leaf Plots)
(0)

Time-Series Graph
(0)

3. Describing Data Numerically(0)

Mean
(0)

Median
(0)

Mode
(0)

Standard Deviation
(0)

Interpreting Standard Deviation
(0)

Percentiles & Quartiles
(0)

Boxplots
(0)

4. Probability(0)

Basic Concepts of Probability
(0)

Complements
(0)

Addition Rule
(0)

Multiplication Rule: Independent Events
(0)

Introduction to Contingency Tables
(0)

Multiplication Rule: Dependent Events
(0)

Bayes' Theorem
(0)

Fundamental Counting Principle
(0)

Counting
(0)

5. Binomial Distribution & Discrete Random Variables(0)

Discrete Random Variables
(0)

Binomial Distribution
(0)

Poisson Distribution
(0)

Hypergeometric Distribution
(0)

6. Normal Distribution and Continuous Random Variables(0)

Uniform Distribution
(0)

Standard Normal Distribution
(0)

Non-Standard Normal Distribution
(0)

7. Sampling Distributions & Confidence Intervals: Mean(0)

Sampling Distribution of the Sample Mean and Central Limit Theorem
(0)

Introduction to Confidence Intervals
(0)

Confidence Intervals for Population Mean
(0)

Determining the Minimum Sample Size Required
(0)

8. Sampling Distributions & Confidence Intervals: Proportion(0)

Sampling Distribution of Sample Proportion
(0)

Confidence Intervals for Population Proportion
(0)

Chi Square Distribution
(0)

Confidence Intervals for Population Variance
(0)

9. Hypothesis Testing for One Sample(0)

Steps in Hypothesis Testing
(0)

Performing Hypothesis Tests: Means
(0)

Performing Hypothesis Tests: Proportions
(0)

Performing Hypothesis Tests: Variance
(0)

Critical Values and Rejection Regions
(0)

Link Between Confidence Intervals and Hypothesis Testing
(0)

Type I & Type II Errors
(0)

10. Hypothesis Testing for Two Samples(0)

Two Proportions
(0)

Two Means - Unknown, Unequal Variance
(0)

Two Means - Unknown, Equal Variance
(0)

Two Means - Known Variance
(0)

Two Means - Matched Pairs (Dependent Samples)
(0)

Two Variances and F Distribution
(0)

11. Correlation(0)

Scatterplots & Intro to Correlation
(0)

Correlation Coefficient
(0)

12. Regression(0)

Linear Regression & Least Squares Method
(0)

Residuals
(0)

Coefficient of Determination
(0)

Inferences for Slope
(0)

Prediction Intervals
(0)

Quadratic Regression
(0)

13. Chi-Square Tests & Goodness of Fit(0)

Goodness of Fit Test
(0)

Contingency Tables
(0)

Independence Tests
(0)

Homogeneity Tests
(0)

14. ANOVA(0)

Introduction to ANOVA
(0)

Multiple Comparisons: Tukey Test
(0)

Multiple Comparisons: Tukey-Kramer Test
(0)

Multiple Comparisons: Bonferoni Test
(0)

Two-Way ANOVA
(0)

2. Describing Data with Tables and Graphs

Visualizing Qualitative vs. Quantitative Data

2. Describing Data with Tables and Graphs

Visualizing Qualitative vs. Quantitative Data: Videos & Practice Problems

Video Lessons Practice Worksheet

Back to all problems

46 of 0

PreviousNext

Problem 46Multiple Choice

A clinical trial tests three dosages of a new allergy medication on $210$ patients. Group M receives $20$ $mg$ , Group N receives $10$ $mg$ , and Group O receives a placebo. After $6$ months, $50$ patients remain in Group M, $47$ in Group N, and $43$ in Group O. Of those, $31$ in Group M, $21$ in Group N, and $8$ in Group O report no allergy symptoms. Draw a conditional bar graph by group showing the proportion of patients who reported no symptoms and those who did. What does the graph suggest?

Group M has the highest proportion of symptom-free patients, suggesting $20$ $mg$ is most effective.

Group N has the highest proportion of symptom-free patients, suggesting $10$ $mg$ is most effective.

Bar graph showing proportions of patients with and without allergy symptoms across three dosage groups: M (20 mg), N (10 mg), and O (placebo).

Group O has the highest proportion of symptom-free patients, suggesting placebo is most effective.

Bar graph showing equal proportions of patients with and without allergy symptoms across three dosage groups: 20 mg, 10 mg, and placebo.

All groups have similar proportions, suggesting dosage does not affect outcome.

0 Comments

Download the Mobile app

Accessibility

Privacy

Do not sell my personal information