1. Use the box-and-whisker plot to identify the five-number summary.
2. Determine whether the variable is qualitative or quantitative. Explain your reasoning.
Favorite musical band
Is the variable qualita
1.A polling organization contacts 2703 female university graduates who have a white collar job
and asks whether or not they had received a raise at work during the past 6 months
What is the population in the study?
A. Female university graduates.
1.What are the two main branches of statistics?
sample statistics and population statistics.
descriptive statistics and inferential statistics.
qualitative statistics and quantitative statistics.
sample statistics and parameter statistics.
2. During a 52w
1. The percent distribution of live multiple-delivery births (three or more babies) in a
particular year for women 15 to 54 years old is shown in the pie chart. Find each
2.5 Measures of Position
Outlier a value that is located very far away from almost all of the other values.
An outlier can have a dramatic effect on the mean.
An outlier can have a dramatic effect on the standard deviation.
An outlier can have a dramatic
Chapter 7 Homework Answers
3) a) A 90% Confidence Interval would be narrower than a 95% Confidence Interval.
This occurs because the as the precision of the confidence interval increases (ie CI width
decreasing), the reliability of an interval containing