Please help with the following parts of this statistics problem.

The table:

Feel free to use your calculator statistics capability and/or the computations listed below. EN1 27 = 4501.2, _ _, ; = 305.4, >!_, Try; = 314.671, >_, y; = 21.91, EN-1 y? = 22.2105 (a) Regress the variable Nicotine on the variable Tar. Find the least squares line, and interpret the slope in words. (b) Test at the 5% level whether tar is significant for predicting Nicotine using the test of coefficient of correlation. Please write down (1) the coefficient of correlation (2) the value of test statistics, (3) critical values and (4) make conclusion based on rejection region. (c) Use a 90% prediction interval to estimate the number of grams of Nicotine emitted by a cigarette with 15 mg of tar. (d) On the average, how many more grams of Nicotine are emitted by cigarettes with one extra milligram of tar? (e) Use the least squares line you have obtained to find the residual when the number of grams of tar is 9 mg.The research facinty ranks varieties or domestic cigarettes according to their tar and nicotine contents. Each of these is considered to be hazardous to hearth. Their study have shown that the Increases In the tar lead to the increase in nicotine contents of a cigarette. Tar (ms) Nicotine (ms)