A Random Sample of 40 College Students Has a Mean

question 9

Multiple Choice

A random sample of 40 college students has a mean earnings of $3120 with a standard deviation of $677 over the summer months. Determine whether a normal distribution or a t-distribution should be used or whether
Neither of these can be used to construct a confidence interval.

• A)Use normal distribution.
• B)Use the t-distribution.
• C)Cannot use normal distribution or t-distribution.

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Definitions:

Happily Married

Being happily married refers to a state in which spouses experience a deep sense of satisfaction, well-being, and contentment in their marital relationship.

Monogamous Relationship

A romantic partnership where an individual has only one partner during their lifetime or at any one time.

Attributional Style

A psychological characteristic that describes how individuals explain the causes of events, both positive and negative, in their lives.

Spouse's Behaviors

Actions or reactions exhibited by one's partner or significant other in the context of a marital or similar intimate relationship.