Interpret the null hypothesis using your t-statistic

Question

Question 1:

• Interpret the null hypothesis using your t-statistic.
• Interpret the null hypothesis using p-value.
• Interpret your confidence interval and test the null hypothesis using confidence interval.

Question 2:

• Is it simple regression model or multiple regression model?
• Write down the regression equation.
• Write down the null hypothesis and alternative hypothesis for regression coefficients.
• Interpret hypothesis testing results for each coefficient respectively.
• Explain coefficient for age and dis.
• What does R_squared tell you?