TABLE 11-7 a Student Team in a Business Statistics Course Designed an Designed

question 166

True/False

TABLE 11-7
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 Table 11-7, the null hypothesis for the randomized block F test for the difference in the means should be rejected at a 0.05 level of significance.

---

Definitions:

Cost of Goods Sold

The total cost directly attributed to the production of goods that were sold, including materials, labor, and overhead.

Overapplied Overhead

A situation where the overhead allocated to products or services is more than the actual overhead costs incurred.

Factory Equipment

The machinery and tools used in the manufacturing process of a product, typically considered a long-term asset.

Administrative Expense

Costs related to the general operation of a company, such as salaries of executive personnel, office supplies, and utilities, not directly related to production or sales.