SCENARIO 11-12
a Student Team in a Business Statistics Course $H _ { 0 } : \mu _ { A } = \mu _ { B } = \mu _ { C } = \mu _ { D }$

question 38

Short Answer

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 null hypothesis for the randomized block F test for the difference in the means is a) $H _ { 0 } : \mu _ { A } = \mu _ { B } = \mu _ { C } = \mu _ { D }$
b) $H _ { 0 } : \mu _ { K _ { y l e } } = \mu _ { \text {Sarah } } = \mu _ { \text {Leigh } } = \mu _ { \text {Issac } }$
c) $H _ { 0 } : M _ { A } = M _ { B } = M _ { C } = M _ { D }$
d) $H _ { 0 } : M _ { K y l e } = M _ { \text {Sarah } } = M _ { \text {Leigh } } = M _ { \text {Issac } }$

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Definitions:

Neural Circuits

Networks of neurons interconnected to process and transmit information through electrical and chemical signals.

Eric Kandel

A neuroscientist known for his research on the physiological basis of memory storage in neurons.

B. F. Skinner

An American psychologist best known for developing the theory of behaviorism and for his work on operant conditioning.

Sigmund Freud

An Austrian neurologist and founder of psychoanalysis, known for his theories on the unconscious mind and psychosexual development.