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

question 48

True/False

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.
-True or False: Referring to Table 11-11,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:

Cerebellum

The part of the brain at the back of the skull in vertebrates, which coordinates and regulates muscular activity.

Sympathetic Nervous System

Part of the autonomic nervous system that prepares the body for quick response to stress or danger, often referred to as the "fight or flight" response.

Pupil Dilation

The enlargement of the pupil, the black center of the eye, in response to various factors such as low light, arousal, or certain drugs, to allow more light to enter the eye.

Accelerated Heartbeat

An increase in heart rate, which can be a physiological response to exercise, stress, or emotional states.