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The possible samples with mean tenure are 12, 14, 6, 19,12 S.No. Sample (12. 14) Sample mean 13

The possible samples with mean tenure are 12, 14, 6, 19,12 S.No. Sample (12. 14) Sample mean 13

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The image with the table is the answer to question 3.

The possible samples with mean tenure are: 12, 14, 6, 19,12 S.No. 1 2 3 4 5 6 7 8 9 10 Sample (12, 14) (12, 6) (12, 19) (12, 12) (14, 6) (14, 19) (14, 12) (6, 19) (6, 12) (19, 12) Sample mean 13 9 15.5 12 10 16.5 13 12.5 9 15.5
Transcribed Image Text:The possible samples with mean tenure are: 12, 14, 6, 19,12 S.No. 1 2 3 4 5 6 7 8 9 10 Sample (12, 14) (12, 6) (12, 19) (12, 12) (14, 6) (14, 19) (14, 12) (6, 19) (6, 12) (19, 12) Sample mean 13 9 15.5 12 10 16.5 13 12.5 9 15.5
4. Under simple random sampling, what is the probability of each sample you wrote down in question 3? 5. For each CEO, calculate the probability that he/she is selected into a sample. Comment on your answer. 6. Use your answers to questions 3 and 4 to write down the probability distribution of the sample mean x (i.e. a table with possible outcomes and associated probabilities).
Transcribed Image Text:4. Under simple random sampling, what is the probability of each sample you wrote down in question 3? 5. For each CEO, calculate the probability that he/she is selected into a sample. Comment on your answer. 6. Use your answers to questions 3 and 4 to write down the probability distribution of the sample mean x (i.e. a table with possible outcomes and associated probabilities).
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7. Calculate the expected value of x. How does your answer compare to the population mean of tenure? 8. Suppose that you sampled 2 CEOs with replacement instead. How many different samples are possible, and what is the probability of each sample occurring?
Transcribed Image Text:7. Calculate the expected value of x. How does your answer compare to the population mean of tenure? 8. Suppose that you sampled 2 CEOs with replacement instead. How many different samples are possible, and what is the probability of each sample occurring?
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