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Two movie reviewers gave their ratings (0 to 4 stars) to seven movies released this past
month as follows:
The Wilcoxon signed-rank test of differences is used.
What is the null hypothesis?
A New York newspaper reported the average gasoline prices in four metropolitan areas
and used a bar chart to illustrate the differences. What type of statistics was shown?
What activities did the newspaper use to make the report?
To construct a bar chart, the class frequencies are plotted on the _________.
If an employee wanted to investigate the relationship between performance rating and
gender, what type of analysis should be used?
A class relative frequency represents a __________ of the total observations in the
class.
According to the Empirical rule, approximately ___________% of the observations lie
within plus and minus one standard deviation of the mean.
Another term for real income is _______________.
The following frequency distribution shows the distribution of delivery times (in days)
for swimstuff.com customer orders during the last month.
How many orders were delivered from 1 day up to 3 days?
To construct a pie chart, the class frequencies are converted to __________.
A ________ is useful when applying Bayes' theorem.
