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Exhibit 17.7.To examine the differences between salaries of male and female middle managers of a large bank,90 individuals were randomly selected and the following variables considered:
Salary = the monthly salary (excluding fringe benefits and bonuses),
Educ = the number of years of education,
Exper = the number of months of experience,
Gender = the gender of an individual;1 for males,and 0 for females.
The regression results for the models,
Model A: Salary = β0 + β1Educ + β2Exper + β3Gender + β4Exper × Gender + ε,
Model B: Salary = β0 + β1Educ + β2Exper + ε,are summarized below. Note.The values of relevant test statistics are shown in parentheses below the estimated coefficients.
Refer to Exhibit 17.7.What is the value of the test statistic for testing the joint significance of Exper and Exper × Gender in Model A?
Wen Shu
A bodhisattva associated with wisdom in Mahāyāna Buddhism, often depicted holding a scroll or book.
Flowers
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Shitao
A Chinese monk and painter of the Qing Dynasty, known for his innovative landscape paintings and calligraphy.
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A long narrow piece of paper or silk, used in East Asian art for painting and calligraphy, viewed by unrolling horizontally.
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