The grаde pоint аverаges fоr 18 randоmly selected HC students are listed below. Assume the grade point averages are normally distributed. 2.0, 3.2, 1.8, 2.9, 1.3, 4.0, 3.3, 2.9, 3.6, 0.7, 2.7, 3.3, 3.9, 1.5, 2.2, 2.7, 3.0, 0.4 Find a 98% confidence interval for all HC students. Interpret the result. Must write as a sentence. (Just like in the notes and HW). Hint: Find mean and standard deviation of the sample. You need to use technology to find these.