12/8/25, 7:53 AM Benchmark 12: Checkpoints 7-8: Attempt review
Introduction to Statistics / Benchmark 12: Checkpoints 7-8 / Benchmark 12: Checkpoints 7-8
Started on Tuesday, November 11, 2025, 9:44 PM
State Finished
Completed on Tuesday, November 11, 2025, 9:53 PM
Time taken 9 mins 53 secs
Grade 115.00 out of 125.00 (92%)
,12/8/25, 7:53 AM Benchmark 12: Checkpoints 7-8: Attempt review
Question 1 A movie theater chain conducted a study to determine if there is a significant
Correct difference in movie genre preferences between men and women. They collected data
15.00 points out on the number of tickets sold for different genres—action, comedy, drama, and
of 15.00 romance—categorized by gender. By analyzing this data using the chi-square test of
independence, they aimed to understand whether gender and movie genre preference
are independent of each other or if there is an association between them.
1. What is the null hypothesis in the movie theater chain's chi-square test of independence?
Men prefer action movies more than women do.
Women prefer romance movies more than men do.
There is a significant association between gender and movie genre preference.
There is no significant difference in movie genre preferences between men and women.
2. What is the main purpose of performing a chi-square test of independence in this study?
To determine if there is an association between gender and movie genre preference.
To test if the distribution of movie genres follows a normal distribution.
To estimate the overall popularity of each movie genre.
To compare the average number of tickets sold per genre.
3. If the chi-square test of independence indicates that gender and movie genre preference are
independent, what does this mean?
Movie genre preference influences gender.
Both gender and movie genre preference are dependent on another variable.
There is no association between gender and movie genre preference.
, 12/8/25, 7:53 AM Benchmark 12: Checkpoints 7-8: Attempt review
Gender influences movie genre preference.
Introduction to Statistics / Benchmark 12: Checkpoints 7-8 / Benchmark 12: Checkpoints 7-8
Started on Tuesday, November 11, 2025, 9:44 PM
State Finished
Completed on Tuesday, November 11, 2025, 9:53 PM
Time taken 9 mins 53 secs
Grade 115.00 out of 125.00 (92%)
,12/8/25, 7:53 AM Benchmark 12: Checkpoints 7-8: Attempt review
Question 1 A movie theater chain conducted a study to determine if there is a significant
Correct difference in movie genre preferences between men and women. They collected data
15.00 points out on the number of tickets sold for different genres—action, comedy, drama, and
of 15.00 romance—categorized by gender. By analyzing this data using the chi-square test of
independence, they aimed to understand whether gender and movie genre preference
are independent of each other or if there is an association between them.
1. What is the null hypothesis in the movie theater chain's chi-square test of independence?
Men prefer action movies more than women do.
Women prefer romance movies more than men do.
There is a significant association between gender and movie genre preference.
There is no significant difference in movie genre preferences between men and women.
2. What is the main purpose of performing a chi-square test of independence in this study?
To determine if there is an association between gender and movie genre preference.
To test if the distribution of movie genres follows a normal distribution.
To estimate the overall popularity of each movie genre.
To compare the average number of tickets sold per genre.
3. If the chi-square test of independence indicates that gender and movie genre preference are
independent, what does this mean?
Movie genre preference influences gender.
Both gender and movie genre preference are dependent on another variable.
There is no association between gender and movie genre preference.
, 12/8/25, 7:53 AM Benchmark 12: Checkpoints 7-8: Attempt review
Gender influences movie genre preference.
