Distribution of hours worked per week by wives

Reference no: EM131817063

The distribution of hours worked per week by wives in the United States in the early 1990s had a mean of 26.0 and a standard deviation of 17.2.

a. Tell whether 26.0 is a sample or population mean, and identify it with proper notation.

b. Without actually calculating values of z, tell whether each of these sample means will have a positive or negative standardized score: 40, 30, 25, 20.

c. Without actually calculating values of z, tell which one of these sample means will have the most extreme standardized score: 40, 30, 25, 20.

d. Tell which of these samples means will have the least extreme standardized score: 40, 30, 25, 20.

Reference no: EM131817063

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