You Are Interested in Determining the Difference in Two Population

question 9

Multiple Choice

You are interested in determining the difference in two population means.You select a random sample of 8 items from the first population and 8 from the second population and then compute a 95% confidence interval.The sample from the first population has an average of 12.2 and a standard deviation of 0.8.The sample from the second population has an average of 11.7 and a standard deviation of 1.0.Assume that the values are normally distributed in each population.The point estimate for the difference in means of these two populations is ______.

• A)−0.2
• B)0.2
• C)0.5
• D)−0.5
• E)0.06

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Definitions:

Selection

The process of choosing from among alternatives based on certain criteria, often used in contexts like recruitment or information processing.

Similar-To-Me Effect

The tendency of individuals to favor or rate more positively those who are perceived to be similar to themselves in some manner.

Attribute

A quality, feature, or inherent part of someone or something that defines or contributes to its nature or character.

Selection Fairness

The equitable and unbiased process of choosing among candidates or alternatives in various contexts including recruitment.