SCENARIO 11-12 a Student Team in a Business Statistics Course Designed an Designed

question 100

True/False

SCENARIO 11-12
A student team in a business statistics course designed an experiment to investigate whether the brand
of bubblegum used affected the size of bubbles they could blow. To reduce the person-to-person
variability, the students decided to use a randomized block design using themselves as blocks.
Four brands of bubblegum were tested. A student chewed two pieces of a brand of gum and then blew
a bubble, attempting to make it as big as possible. Another student measured the diameter of the
bubble at its biggest point. The following table gives the diameters of the bubbles (in inches) for the
16 observations.
-Referring to Scenario 11-12, the randomized block F test is valid only if the
population of diameters has the same variance for the 4 brands.

---

Definitions:

Hourly Wage Rate

The amount of money paid for each hour of work performed, typically associated with part-time or contractual employment.

Gross Pay

The total compensation a person receives before any deductions or taxes are taken out.

Medicare Tax Rate

The percentage of an individual's or employer's earnings that is contributed to Medicare, a U.S. federal health insurance program.

Hourly Wage Rate

The amount of money paid for each hour of work.