A Preliminary Study of Hourly Wages Paid to Unskilled Employees

question 45

Multiple Choice

A preliminary study of hourly wages paid to unskilled employees in three metropolitan areas was conducted. Seven employees were included from Area A,nine from Area B,and twelve from Area C. The test statistic was computed to be 4.91. What can we conclude at the 0.05 level?

• A)The mean hourly wages of unskilled employees of all areas are equal.
• B)The mean hourly wages in at least two metropolitan areas are different.
• C)More degrees of freedom are needed.
• D)None of these is correct.

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