The data below represents the population of a certain country every 10 years for the years? 1900-2000. How do I determine the? least-squares regression? equation, treating year as the explanatory variable? If a normal probability plot of the residuals indicates that the residuals are approximately normally distributed, how do I test whether a linear relation exists between year and population using the α=0.01 level of significance stating the null and alternative hypotheses and then determine the? P-value of this hypothesis test?

Year, x    Population, y           Year, x    Population, y

1900                79,212             1960             179,323

1910                95,228             1970             203,302

1920              104,021             1980             226,542

1930              123,202             1990             248,709

1940              132,164             2000             281,421

1950              151,325