A university is concerned about the presence of grade inflation, which is define

Question

A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institution's students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for the student body was recorded over the past 11 years, as shown in the table to the right. Construct a 95% confidence interval for the regression slope. Construct a 95% confidence interval for the slope. LCL = and UCL = (Round to three decimal places as needed.)

Explanation / Answer

The output table will be

0.042

So LCL = 0.06 and UCL = 0.042

Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 2.887 0.054 53.286 0.000 2.764 3.009 X Variable 1 0.024 0.008 2.971 0.016 0.006

0.042

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.