Please see questions below

This table compares the number of cigarettes smoked per day' by eight expectant mothers to the birth weight of their children. clga rettes Birth 3.20 3.15 3.10 3.06 3.09 3.05 3.01 3.00 weight {in kg} a. Find the sample linear correlation coefficient (r). interpret this number. b. Test the hypothesis that a linear correlation exists between the variables at the 0.05 level of significance. Show all steps