Let x ₁ , x ₂ , . . . , x ₁₀₀ denote the actual net weights (in pounds) of 100 randomly selected bags of fertilizer. Suppose that the weight of a randomly selected bag has a distribution with mean 50 pounds and variance 1 pound 2. Let x ̅ be the sample mean weight (n = 100).

a. Describe the sampling distribution of x ̅.

b. What is the probability that the sample mean is between 49.75 pounds and 50.25 pounds?

c. What is the probability that the sample mean is less than 50 pounds?

Answer rating: 100% (QA)

a A randomly selected bag has a distribution with mean 50lb and variance 1... View the full answer