So if this is the population right over here, and if somehow where it's price on the vertical axis and processor speed on the horizontal axis, and if you were able to look at the entire population, I don't know how many phones there are, but it might be billions of phones, and then do a regression line, our null hypothesis is that the slope of the regression line is going to be zero. So the regression line might look something like that. Where the equation of the regression line for the population, Y hat, would be alpha plus beta times X. And so our null hypothesis is that beta is equal to zero. And the alternative hypothesis, which is her suspicion, is that the true slope of the regression line is actually greater than zero. Assume that all conditions for inference have been met. At the alpha equals 0.01 level of significance, is there sufficient evidence to conclude a positive linear relationship between these variables for all mobile phones, Y?