Determine whether the statement is true or false. If it is false, which statement would make it true? A sampling distribution is normal only if the population is normal. O The statement is true. O The statement is false. A sampling distribution is normal if either n> 30 or the population is normal. O The statement is false. A sampling distribution is normal only if n 2 30 O The statement is false. A sampling distribution is never normal.

Directions: Identify which type of sampling is used: random, stratified random, cluster, systematic, or convenience. _____________________1. A psychologist selects 5 boys and 5 girls from each of Special Science classes. _____________________2. When he made an important announcement, he based conclusion on 5,000 responses from 50,000 questionnaires to students. _____________________3. The game show organizer writes the name of each contestant on a separate card, shuffles the cards, and draws 6 names. _____________________4. Globe selects every 50th cellphone from the assembly line an conduct a thorough test of quality.

Question Help Describe the sampling distribution of p. Assume the size of the population is 30,000. n= 600, p 0.3 Choose the phrase that best describes the shape of the sampling distribution of p below. O A. Approximately normal because ns0.05N and np(1-p) 2 10. O B. Not normal because n s0.05N and np(1 - p) < 10. O C. Not normal because n s0.05N and np(1-p) 2 10. O D. Approximately normal because ns0.05N and np(1- p) < 10. Determine the mean of the sampling distribution of p. (Round to one decimal place as needed.) Determine the standard deviation of the sampling distribution of p. (Round to three decimal places as needed.) sS Click to select your answer(s). mentary Statistics Section OL1 Spring 2021 CO) is based on Sullivan: Fundamentals of Statistics, 5e rivacy Policy | Copyright © 2021 Pearson Education Inc. All Rights Reserved.

15-