Posted by **britt** on Monday, April 12, 2010 at 12:19pm.

MacDonald’s executives want to experiment with redesigning its restaurants so that the customers form one line leading to four registers, rather than four lines leading to four separate registers. They redesign 30 randomly selected restaurants with the single line. In addition, they randomly select 30 restaurants with the four line configuration to participate in the study. At each restaurant, an employee monitors the wait time (in minutes) of randomly selected patrons. Use the data below to test if the standard deviation for the wait time in the single line is less than the standard deviation of wait time in the multiple lines at the 0.0 5 level of significance.

Single Line Multiple Lines

1.2 2.1 1.7 2.8 1.1 1.6 2.9 4.6

1.9 2.1 2.4 3.0 3.8 2.9 2.8 2.9

2.1 2.3 1.9 2.9 4.3 2.3 2.0 2.6

2.7 2.0 2.9 2.3 1.3 1.3 2.0 2.7

2.8 1.1 3.1 1.8 2.0 3.2 2.3 0.9

## Answer this Question

## Related Questions

- statistics - A study of checkout lines at the Safeway revealed that between 4-...
- statistics - In a certain city, a fast food chain feels it is giving a bad ...
- statistics - 6. six men and four women are standing around a table that has four...
- Statistics - the assets (in billions of dollars) of the four wealthiest people ...
- math-probability - A state lottery has a daily drawing to form a four-digit ...
- math - write a four equations in slope-intercept form of four different lines ...
- math - Four different positive integers sum to one hundred twenty-five. If you ...
- Geometry - Which of the following statements from Euclidean geometry is also ...
- Algebra - Which of the following statements from Euclidean geometry is also true...
- Calculus - The owner of a farm wants to form four rectangular corrals. He has ...

More Related Questions