Question 1

Describe what these boxplots tell you about the relationship between the provinces and salary,based on the same occupation.

Accepted Answer

A) ON and BC have very comparable salaries.The average salaries for these provinces are just above $40K,and their spreads are very close.NS is very comparable to ON and BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
B) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,but their spreads are different.NS is not very comparable to either ON and BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
C) ON and BC don't have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are different.NS is not very comparable to either ON and BC.The upper 50% of salaries for QC corresponds to the lower 50% of NS salaries. 
D) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are very close.NS's average is the highest.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
E) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are very close.NS is not very comparable to either ON or BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
A) ON and BC have very comparable salaries.The average salaries for these provinces are just above $40K,and their spreads are very close.NS is very comparable to ON and BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
B) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,but their spreads are different.NS is not very comparable to either ON and BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
C) ON and BC don't have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are different.NS is not very comparable to either ON and BC.The upper 50% of salaries for QC corresponds to the lower 50% of NS salaries. 
D) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are very close.NS's average is the highest.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries. 
E) ON and BC have very comparable salaries.The average salaries for these provinces are just below $40K,and their spreads are very close.NS is not very comparable to either ON or BC.The upper 50% of salaries for NS corresponds to the lower 50% of QC salaries.

Question 2

A class of sixth graders takes a diagnostic reading test,and the scores are reported by reading grade level.The 5-number summaries for the 20 boys and 21 girls are shown:   
a)Which group had the highest score?
b)Which group had the greatest range?
c)Which group had the greatest interquartile range?
d)Which group's scores appear to be more skewed? Explain.
e)Which group generally did better on the test? Explain.
f)If the mean reading level for boys was 6.6 and for girls was 6.4,what is the overall mean for the class?

Accepted Answer

a)Girls
b)Girls
c)Boys
d)The boys appear

Describe what these boxplots tell you about the relationship between the provinces and salary,based on the same occupation.

Data

Displaying and Describing Categorical Data

Displaying and Summarizing Quantitative Data

The Standard Deviation As a Ruler and the Normal Model

Scatterplots, association, and Correlation

Linear Regression

Regression Wisdom

Re-Expressing Data: Get It Straight

Understanding Randomness

Sample Surveys

Experiments and Observational Surveys

From Randomness to Probability

Probability Rules

Random Variables

Probability Models

Sampling Distribution Models

Confidence Intervals for Proportions

Testing Hypotheses About Proportions

More About Tests

Comparing Two Proportions

Inferences About Means

Comparing Means

Paired Samples and Blocks

Comparing Counts

Inferences for Regression

Analysis of Variance

Multifactor Analysis of Variance

Multiple Regression

Multiple Regression Wisdom

Rank-Based Nonparametric Tests

The Bootstrap

Filters

Exam 4: Understanding and Comparing Distributions

Describe what these boxplots tell you about the relationship between the provinces and salary,based on the same occupation.

Data

Displaying and Describing Categorical Data

Displaying and Summarizing Quantitative Data

The Standard Deviation As a Ruler and the Normal Model

Scatterplots, association, and Correlation

Linear Regression

Regression Wisdom

Re-Expressing Data: Get It Straight

Understanding Randomness

Sample Surveys

Experiments and Observational Surveys

From Randomness to Probability

Probability Rules

Random Variables

Probability Models

Sampling Distribution Models

Confidence Intervals for Proportions

Testing Hypotheses About Proportions

More About Tests

Comparing Two Proportions

Inferences About Means

Comparing Means

Paired Samples and Blocks

Comparing Counts

Inferences for Regression

Analysis of Variance

Multifactor Analysis of Variance

Multiple Regression

Multiple Regression Wisdom

Rank-Based Nonparametric Tests

The Bootstrap

Filters