Question

The amount of syrup that people put on their pancakes is normally distributed with mean 56 mL and standard deviation 12 mL. Suppose that 41 randomly selected people are observed pouring syrup on their pancakes. Round all answers to 4 decimal places where possible.

1. What is the distribution of XX? XX ~ N(,)
2. What is the distribution of ¯xx¯? ¯xx¯ ~ N(,)
3. If a single randomly selected individual is observed, find the probability that this person consumes is between 56.7 mL and 59 mL.
4. For the group of 41 pancake eaters, find the probability that the average amount of syrup is between 56.7 mL and 59 mL.
5. For part d), is the assumption that the distribution is normal necessary? NoYes

Answer 1