Consider the Following to Answer the Question(s) Below

question 26

Multiple Choice

Consider the following to answer the question(s) below.
A recent study of two brands of golf balls was undertaken to determine whether there is a difference in the mean distance that the two golf ball brands will fly off the tee. To conduct the test, a robot which swings the club at the same speed and with the same swing pattern each time was used. The following data reflect sample data for a random sample of balls of each brand. We assume that the variances of the two groups are the same.
Brand A: 234 236 230 227 234 233 228 229 230 238
Brand B: 240 236 241 236 239 243 230 239 243 240
-The correct null and alternate hypotheses (assuming Brand A is group 1 and Brand B is group 2) are

• A) H0 : µ1 - µ2 = 0 and HA : µ1 - µ2 ≠ 0
• B) H0 : µ1 - µ2 = 0 and HA : µ1 - µ2 > 0
• C) H0 : µ1 - µ2 = 0 and HA : µ1 - µ2 < 0
• D) H0 : µ1 - µ2 < 0 and HA : µ1 - µ2 > 0
• E) H0 : µ1 - µ2 ≠ 0 and HA : µ1 - µ2 = 0

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Definitions:

Eardrum

The thin, membrane-like structure that separates the outer ear from the middle ear and vibrates in response to sound waves.

Audition

The formal term for the sense of hearing.

Olfaction

The sense of smell, a chemical sensing system that is one of the five traditional senses.

Occipital

Pertaining to the occipital lobe, a region of the brain responsible for processing visual information.