iPad 12:16 PM * 100%- webwork.clayton.edu ¢+0 Chapter 7 Homework- Introductory S

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iPad 12:16 PM * 100%- webwork.clayton.edu ¢+0 Chapter 7 Homework- Introductory Statistics Section o... WeBWorK : M1231-06-SP18 @MAA WeBWorK Logged in as shunt16 MATHEMATICAL ASSOCIATION OF AMERICA Log Out webwork/m1231-06-sp18 / statchapter072 MAIN MENU Courses Homework Sets StatChapter07: Problem 2 StatChapt Previous Problem Problem List Next Problenm Prob User Settings Grades 1 point) In a very large population, the distribution of annual income is skewed, with a long right tail. We take a Simple Random Sample of n people from this population and record the mean annual income of the people in the sample. (a) lf n = 3, we would expect the distribution of sample means to be A. skewed to the right. OB. an approximately Normal distribution. O C-skewed to the left. OD. an approximately Uniform distribution. Problem 1 (b) If n = 48, we would expect the distribution of sample means to be OA. an approximately Normal distribution. Problem 3 Problem 4 Problem 5 Problem 6 Problem7 Problem 8 B. an approximately Uniform distribution. OC. skewed to the right D. skewed to the left. (C) If n-133, we would expect the distribution of sample means to be OA. an approximately Normal distribution. B. skewed to the left. C, an approximately Uniform distribution. OD. skewed to the right. Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email instructor

Explanation / Answer

According to Central Limit Theorem, if we take a sample of size greater than 30 (approximately), the distribution of sample mean will be approximately normal.

(a) A. skewed to the right

(b) A. An approximately normal distribution

(c) A. An approximately normal distribution

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