please do all parts to the question!

3. AT&T provides long-distance telephone service in Pleasantville. According to the company's records, the average length of all long-distance calls placed through them in want to check if the mean length of the current long-distance calls is different from the 14,35 minutes. A sample of 200 such calls placed through AT&T produced a mean length of 15.15 minutes. Assume we want to perform an analysis with a 2% significance level. (20 points) Find: a) H.: b) HA c) What type of distribution is this scenario? d) Find os e) SHOW BY HAND (no Ti solution will be accepted) Draw a normal distribution map, identify where/what (by-hand) the p-value is. f) Can you conclude that the mean length of all current long-distance calls is different from the 14.35 minutes? State your conclusion and justification