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

question 100

True/False

SCENARIO 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 Scenario 11-7,the decision made at a 0.05 level of significance on the F test for the block effects implies that the blocking has been advantageous in reducing the experiment error.

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Definitions:

Cash Ratio

A liquidity ratio that measures a company's ability to pay off its short-term liabilities with its cash and cash equivalents.

Average Collection Period

The average number of days it takes for a business to receive payment from its customers for invoices issued.

Total Asset Turnover

A financial ratio that measures the efficiency of a company's use of its assets in generating sales revenue; calculated by dividing sales by total assets.

Fixed-Asset Turnover

A financial ratio that measures a company's efficiency in using its fixed assets to generate sales, indicating how well assets are being managed.