The readability of a text is defined by many factors, one of which is average word length. The number of letters per
word in a statistics textbook is strongly skewed to the right. The author claims the mean word length is μ = 5 letters
and the standard deviation is σ = 1.25 letters. In order to assess this claim, an analyst selects a random sample of
size n = 100 from the population of all words in the text.
Assuming the author's claim is true:
1. What is the shape of the sampling distribution dfx? [
2. What is the mean of the sampling distribution of x? [
3. What is the standard deviation of the sampling distribution of x? |