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A sample of size 25 from a normal population had a mean of 75 and a standard deviation of 12. Which of the following is the correct form of a 95% confidence interval for the population mean? Note that Zoms = 1.96 %3D and foas = 2.064 for 24 degrees of freedom. o 75±(2.064) 12p5 o 75 (2064)(12) o 75+(1.96)(12) e 75+(1.96) 25 Incorrect. Please review Top Ten Concept # 3. none of the other answers are correct

A sample of size 25 from a normal population had a mean of 75 and a standard deviation of 12. Which of the following is the correct form of a 95% confidence interval for the population mean? Note that Zoms = 1.96 %3D and foas = 2.064 for 24 degrees of freedom. o 75±(2.064) 12p5 o 75 (2064)(12) o 75+(1.96)(12) e 75+(1.96) 25 Incorrect. Please review Top Ten Concept # 3. none of the other answers are correct

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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A sample of size 25 from a normal population had a mean of 75 and a standard deviation of 12. Which of the following is the correct form of a 95% confidence interval for the population mean? Note that Zoms = 1.96 and foms = 2.064 for 24 degrees of freedom. %3! o 75t(2064) 12 /25 75+(2.064)(12) 75+(1.96)(12) e 75+(1.96) 12 25 Incorrect. Please review Top Ten Concept # 3. none of the other answers are correct
Transcribed Image Text:A sample of size 25 from a normal population had a mean of 75 and a standard deviation of 12. Which of the following is the correct form of a 95% confidence interval for the population mean? Note that Zoms = 1.96 and foms = 2.064 for 24 degrees of freedom. %3! o 75t(2064) 12 /25 75+(2.064)(12) 75+(1.96)(12) e 75+(1.96) 12 25 Incorrect. Please review Top Ten Concept # 3. none of the other answers are correct
If the null hypothesis is that the population mean is equal to 30 and you conduct a test with a significance level of 0.05 and get a p-value of 0.08, then O you are certain that the population mean is 30. Onone of the other answwers are correct O the probability of type II error is 0.08. you cannot reject the null hypothesis. you must reject the null hypothesis. Incorrect. Please review Top Ten Concept # 7. A company used linear regression to relate the number of units produced each month (X) to the total cost of production each month (Y), and found the equation to be Y = 10,000 + 4X. The estimate for the variable cost per unit is $10,004. Incorrect. Please review Top Ten Concept # 4. O $10.000. O $50,000. O $4. none of the other answers are correct
Transcribed Image Text:If the null hypothesis is that the population mean is equal to 30 and you conduct a test with a significance level of 0.05 and get a p-value of 0.08, then O you are certain that the population mean is 30. Onone of the other answwers are correct O the probability of type II error is 0.08. you cannot reject the null hypothesis. you must reject the null hypothesis. Incorrect. Please review Top Ten Concept # 7. A company used linear regression to relate the number of units produced each month (X) to the total cost of production each month (Y), and found the equation to be Y = 10,000 + 4X. The estimate for the variable cost per unit is $10,004. Incorrect. Please review Top Ten Concept # 4. O $10.000. O $50,000. O $4. none of the other answers are correct
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