The Eagle Ridge Contractors' Association Claims the Average Price of a Home

question 62

Multiple Choice

The Eagle Ridge Contractors' Association claims the average price of a home in their subdivision is
$125,150, with a standard deviation of $7,350. A sample of 36 homes for sale in this subdivision had an
average selling price of $123,550. Is there evidence that the costs of homes for sale in this subdivision are
actually lower than claimed?
-An average department store sells 200 men's suits per year. The men's suit departments at a particular national chain of stores claim that they more than the industry average. In a sample of 50 stores, they
Sold, on the average, 280 suits per year with a standard deviation of $40. What is the test statistic for this
Hypothesis?

• A) 0.28
• B) 2.00
• C) 8.07
• D) 14.14

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Definitions:

Recall

The mental process of retrieving and remembering information or experiences from the past.

Retroactive Interference

Retroactive interference is a memory phenomenon where newer information interferes with the recall of older information.

Proactive Interference

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

Anterograde Amnesia

The inability to form new memories following the onset of an amnesia-causing event, though long-term memories from before the event may remain intact.