Basic Ideas of Linear Regression: The Two-Variable Model chapter six Basic Ideas of Linear Regression: The Two-Variable Model

Table 6-1 Weekly lotto expenditure in relation to weekly personal disposable income.

Figure 6-1 Weekly expenditure on Lotto ($) and weekly personal disposable income ($).

Figure 6-2

Table 6-2 A random sample from Table 6-1.

Table 6-3 Another random sample from Table 6-1.

Figure 6-3 Sample regression lines based on two independent samples

Figure 6-4 The population and sample regression lines.

Figure 6-5 (a) Linear demand curve; (b) nonlinear demand curve.

Table 6-4 Raw data (from Table 6-2) for lotto.

Figure 6-6 Regression line based on data from Table 6-4.

Table 6-5 Average hourly wage by education.

Figure 6-7 S&P 500 composite index and three-month Treasury bill rate.

Table 6-6 Median home price (MHP) and mortgage interest rate (INT) in metropolitan New York area, 1994-2003.

Figure 6-8 Median home prices and interest rates.

Table 6-7 Hypothetical data on weekly consumption expenditure and weekly income.

Table 6-8 Consumer price index (CPI) and S&P 500 index (S&P), United States, 1978-1989.

Table 6-9 Nominal interest rate (Y) and inflation (X) in nine industrial countries for the year 1988.

Table 6-10 Consumer price index (CPI) and S&P 500 index (S&P), United States, 1990-2001.

Table 6-11 Selected data on top business schools in the United States.

Table 6-12 Real gross domestic product and civilian unemployment rate, United States, 1970-1999.

Table 6-13 S&P 500 index (S&P) and three-month Treasury bill rate (3-M T Bill) 1980-1999.

Table 6-14 Auction data on price, age of clock and number of bidders.

Table 6-15 Mean scholastic aptitude test (S.A.T.) verbal and math scores for college-bound seniors, 1967-1990.