53. The menu developers for a chain of coffee shops have conducted experiments to see how long customer take to make a drink choice, based on the number of drinks on the menu. Normalizing so that th average time needed to make a choice given just two drinks is 1 time unit. the average times needed to make a choice given n drinks on the menu are shown in the table below. Number of choices, 2 3 4 5 6 7 average time to make a choice 1 1.4 1.7 2 2.2 2.3 (a) (5 points) Use regression to find a function that models the data. Round the values of the coeffi- cients to the nearest thousandth. (b) (3 points) Using your model, predict the average time to make a choice if there are 10 drinks on the menu. ​