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

question 58

Short Answer

TABLE 11-11
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 11-11,what is the critical value for testing the block effects at a 0.05 level of significance?

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Definitions:

Urinary Bladder

A hollow muscular organ that stores urine from the kidneys before it is excreted from the body.

Podocytes

Specialized cells in the kidney that form part of the filtration barrier, wrapping around the capillaries of the glomerulus to prevent the passage of large molecules.

Filtration Slits

Gaps between podocyte extensions in the kidney that filter blood, allowing certain molecules to pass while retaining larger ones.

Dilute Urine

Urine that has a lower concentration of solutes, typically produced when the body is well hydrated or needs to eliminate excess water.