Question: Question 6. To make a statistical inference about the trend of hourly wages of part-time and full-time employees in the 15 to 24 age group,

Question 6. To make a statistical inference about the trend of hourly wages of part-time and full-time employees in the 15 to 24 age group, we need to construct trend lines over the decade.

(a) Use the Excel file NWPB/Wages.xlsx for "All Industries" to construct two scatter plot diagrams of hourly wages (dependent variable) vs. month (independent variable) starting from t = 1, January 2008, for the ten-year period for part-time and full-time employees.

(b) Using an Excel worksheet, find the regression lines, coefficients of determination, and coefficients of correlation. Is the linear trend evident for both cases?

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