Suppose that the mean retail price per litre of unleaded petrol in the Sydney greater region is $1.66 with a standard deviation of $0.10. Assume that the retail price per litre is normally distributed. Use the empirical rule to answer the following questions: i. What percentage of unleaded petrol prices in the Sydney greater region falls between $1.56 and $1.76 per litre?? ii. Between what two values does the middle 95% of unleaded petrol prices in the Sydney greater region fall? TripAdvisor is one of many online websites that provides ratings for hotels throughout the world. The following bar chart displays the percentage frequency distribution of ratings provided by 649 guests at the Sheraton Anaheim Hotel. Guest Ratings of Sheraton Anaheim Hotel 50.00% 38.83%% 40.00% 28 81% 30.00%% Percentage Frequency 20.00% 16.49% 9.55% 10.00%% 6.32% 0.00% Excellent Very Good Average Poor Terrible Ratings Comment on how guests rate their stay at the Sheraton Anaheim Hotel