A Random Sample of 500 Reports an Average Yearly Income

question 36

Multiple Choice

A random sample of 500 reports an average yearly income of $42,000 with a standard deviation of $1000. An estimate of the parameter at the 95% level is about $175 wide. In this research situation________.

• A) we can be 95% confident that the population mean is 42,000 ± 175.
• B) the sample size is much too small to justify the use of estimation procedures.
• C) the alpha level is 1000.
• D) the sample mean is $175.

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Definitions:

Comma-Separated Lists

A method of separating items in a list with commas, commonly used in programming for defining arrays or parameters, and in data formats like CSV.

Nested Loops

A loop inside another loop, used to perform repeated operations on multidimensional data structures.

Inner Loop

A loop that is nested within another loop, effectively operating as part of the outer loop's iteration process.