A Recent Survey Suggests 30% of Boat Owners Do Not

question 88

Multiple Choice

A recent survey suggests 30% of boat owners do not regularly use their boat after the second year of ownership.A local boat dealer wants to test the alternative hypothesis that p > .30 with α = .05.He surveys 60 boat owners and finds 42% of the owners who have owned their boat for three years report they do not regularly use their boat.Assuming that p = .35, the probability of type II error is approximately ________.

• A)0.2211
• B)0.1421
• C)0.8579
• D)0.7789
• E)0.4965

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Definitions:

Retroactive Interference

A phenomenon in cognitive psychology where new information interferes with the ability to recall old information.

Proactive Interference

A phenomenon where older memories interfere with the recall of newer memories.

Negative Interference

Occurs when past learning inhibits or interferes with the recall of later learning.

Savings Scores

A measure in psychology that quantifies the amount of learning retained over a period of time.