Suppose you want to use a confidence interval to estimate the true mean number of calories found in candy bars. It is known that the distribution of the calories is normal. How many candy bars must you have in order to be sure the sampling distribution of x is normal?

See explaination.

Step-by-step explanation:

Sampling distribution can be defined as a probability distribution of a statistic which is gotten through a large number of samples usually drawn from a specific population.

The sampling distribution of a given population can be described as the distribution of frequencies of a range of different outcomes that could possibly occur for a statistic of a population.

Please refer to attachment for a step by step technique to prove How many candy bars must you have in order to be sure the sampling distribution of x is normal.

the answer to this is a. a^2 + b^2 = c^2