Use the data in the table to calculate the simple linear regression that models the impact of the robbery rate on the murder rate.

Murder rate

6.8

6.3

5.7

5.5

5.6

5.6

5.7

5.5

Robbery Rate

186.2

165.5

150.1

145.0

148.5

146.1

142.5

136.7

a.Interpret the slope and intercept coefficient estimates.

b.Find and interpret the R².

c.Complete hypothesis test for statistical significance of the slope estimate at the 10% () level.