ltiple Choice ntify the choice that best completes the statement or answers the question. 1. Samples of size n 9 are selected from a population with = 80 with o= 18. What is the expected value for the distribution of sample means? a. 6 b. c. 80/3 d.) 80 18 2. A sample of n = 4 scores is selected froma population with u M=56, what is the z-score for this sample mean? 50 and o= 12. If the sample mean is a. 0.50 b. 1.00 c. 2.00 d. 4.00 3. For a normal population with a mean of u= 80 and a standard deviation of o- 10, what is the probability of obtaining a sample mean greater than M 75 for a sample of n = 25 scores? a. p 0.0062 b. p 0.9938 11 C. p 0.3085 d. p 0.6915 1 t Answer 6, describe the shape, the mean, and the standard deviation for For a population with u= 50 and o the distribution of sample means for each of the following: a. Samples ofn = 4. b. Samples of n = 36. 4. 5. Find the z-score for the sample mean for each of the following samples obtained from a population with 50 and o 12. 4 M= 56 for a sample of n
ltiple Choice ntify the choice that best completes the statement or answers the question. 1. Samples of size n 9 are selected from a population with = 80 with o= 18. What is the expected value for the distribution of sample means? a. 6 b. c. 80/3 d.) 80 18 2. A sample of n = 4 scores is selected froma population with u M=56, what is the z-score for this sample mean? 50 and o= 12. If the sample mean is a. 0.50 b. 1.00 c. 2.00 d. 4.00 3. For a normal population with a mean of u= 80 and a standard deviation of o- 10, what is the probability of obtaining a sample mean greater than M 75 for a sample of n = 25 scores? a. p 0.0062 b. p 0.9938 11 C. p 0.3085 d. p 0.6915 1 t Answer 6, describe the shape, the mean, and the standard deviation for For a population with u= 50 and o the distribution of sample means for each of the following: a. Samples ofn = 4. b. Samples of n = 36. 4. 5. Find the z-score for the sample mean for each of the following samples obtained from a population with 50 and o 12. 4 M= 56 for a sample of n
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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