Instruction 10-9 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 73

Multiple Choice

Instruction 10-9
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course.The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course.The groups are assumed to be independent random samples.Let π₁ and π₂ represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study,respectively.
-Referring to Instruction 10-9,what is/are the critical value(s) when testing whether the current population proportion is higher than before if α = 0.05?

• A)+ 1.96
• B)± 1.645
• C)+ 1.645
• D)± 1.96

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Definitions:

Decay

The gradual decline in the ability to retrieve and maintain information over time, often used to describe the fading of memory.

Consolidation Failure

The inability to stabilize and store new memories effectively, leading to memory loss or impairment.

Proactive Interference

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

Reactive Interference

The impairment in memory performance and learning ability due to the disruptive effect of previously learned information.