Question 15 5 points Save Answer A study is done to determine which of the two soft drinks has more sugar. There are 13 cans of Beverage A in a sample and six cans of Beverage B. The mean amount of sugar in Beverage A is 36 grams, with a standard deviation of 0.6 grams. The mean amount of sugar in Beverage B is 38 grams, with a standard deviation of 0.8 grams. The researchers believe that Beverage B has more sugar than Beverage A, on average. Both populations have normal distributions. O a. None of the answer choices is correct O b. The standard deviation is not necessary to conduct the test Oc. Both population standard deviations are known. O d. Both population standard deviations are unknown