Conduct a Full Hypothesis Test and Determine If the Given

question 25

Multiple Choice

Conduct a full hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Round all amounts and standard scores to two decimal places.
-In 1990, the average duration of long-distance telephone calls originating in one town was 9.8 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the 1990 mean of 9.8 minutes. The mean duration for a random sample of 50 calls originating in the town was 9.0 minutes. Test whether the claim that the mean call duration is less than the 1990 mean of 9.8 minutes is supported or not supported. Assume that ? = 4.8 minutes.

• A)not supported
• B)supported

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Definitions:

Proactive Interference

Proactive interference occurs when older memories hinder the recall of newer memories.

List A

This term is too vague without context, typically referring to an enumerated collection of items or tasks; therefore, I'll say NO.

Shuttle Box

An experimental apparatus used in animal learning research; typically involves an enclosed box with two compartments where an animal can avoid or escape from an aversive stimulus by moving from one side to the other.

Distinctive Environment

A unique setting or situation that can influence behavior or responses due to its specific characteristics.