Exercise 2: A study used KittyCams to record all activity of n = 55 domestic cats that hunt outdoors. The video footage showed that the mean number of kills per week for these cats was 2.4 with a standard deviation of 1.51. Construct 99% confidence interval for the mean number of kills per week and test the claim that the mean number of kills per week by US household cats is less than 3, using significance level 0.05