Question 10 Bottles of a popular cola drink are supposed to contain 300 ml of cola. There is some variation from bottle to bottle because the filling machinery is not perfectly precise. The distribution ofthe contents is Normal with a standard deviation of 3 ml. An inspector who suspects that the bottler is under-filling the measures the contents of six bottlers. The results are 299.4; 297.7; 301.0; 239.9; 300.2; 297.0 Is this convincing evidence at alpha = 0.05 level that the mean contents of cola bottles is less than the advertised 300 ml? Show your work! H0: u = 300 ml HA: u 0.05 -) we cannot reject H0: [.1 = 300 ml as p-value = 0.21 is not smaller than 0.05. Interpretation: This is not convincing evidence. Or, we don't have the evidence that the bottler is under- filling