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For numbers 9 to 11, The principal of Mapayapa Integrated National High School claea that the average salary of their teachers is P24 000 per month, A random sample of 15 teachers in the school has a mean of P23, 220, and a standard deviation of P400. 9. Identify the population mean. A. P24,000 B. P23,220 C. P400 D. 15 10. Identify the sample mean. A. P24,000 B. P23,220 C. P400 D. 15 11. In testing the principal's claim, can we use the t-distribution? A. Yes, because the population standard deviation is unknown, and the sample size is small. B. Yes, because the sample standard deviation is small, and variance is unknown. C. No, because the population standard deviation is greater than the sample standard deviation. D. No, because the sample size is too small for the given sample standard deviation.

For numbers 9 to 11, The principal of Mapayapa Integrated National High School claea that the average salary of their teachers is P24 000 per month, A random sample of 15 teachers in the school has a mean of P23, 220, and a standard deviation of P400. 9. Identify the population mean. A. P24,000 B. P23,220 C. P400 D. 15 10. Identify the sample mean. A. P24,000 B. P23,220 C. P400 D. 15 11. In testing the principal's claim, can we use the t-distribution? A. Yes, because the population standard deviation is unknown, and the sample size is small. B. Yes, because the sample standard deviation is small, and variance is unknown. C. No, because the population standard deviation is greater than the sample standard deviation. D. No, because the sample size is too small for the given sample standard deviation.

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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OR HIGH SCHOOL For numbers 9 to 11, The principal of Mapavapa Integrated National High School claimed that the average salary of their teachers is P24, 000 per month. A random sample of 15 teaehers in the school has a mean of P23, 220, and a standard deviation of P400. 9. Identify the population mean. A. P24,000 B. P23,220 C. P400 D. 15 10. Identify the sample mean. A. P24,000 B. P23,220 C. P400 D. 15 11. In testing the principal's claim, can we use the t-distribution? A. Yes, because the population standard deviation is unknown, and the sample size is small. B. Yes, because the sample standard deviation is small, and variance is unknown. C. No, because the population standard deviation is greater than the sample standard deviation. D. No, because the sample size is too small for the given sample standard deviation. 12. Which property of t-distribution is NOT a property of normal distribution? A. The t-distribution curve is bell-shaped. B. The t-distribution curve is symmetrical about zero. C. In t distribution, the variance is always greater than 1. D. The total area under the t distribution curve equal to 1. 13. The following statements tell about the t-distribution EXCEPT 4. The standard deviation of the t-distribution is equal to 1. 3. As the degrees of freedom increase, the t-distribution tends to normal distribution
Transcribed Image Text:OR HIGH SCHOOL For numbers 9 to 11, The principal of Mapavapa Integrated National High School claimed that the average salary of their teachers is P24, 000 per month. A random sample of 15 teaehers in the school has a mean of P23, 220, and a standard deviation of P400. 9. Identify the population mean. A. P24,000 B. P23,220 C. P400 D. 15 10. Identify the sample mean. A. P24,000 B. P23,220 C. P400 D. 15 11. In testing the principal's claim, can we use the t-distribution? A. Yes, because the population standard deviation is unknown, and the sample size is small. B. Yes, because the sample standard deviation is small, and variance is unknown. C. No, because the population standard deviation is greater than the sample standard deviation. D. No, because the sample size is too small for the given sample standard deviation. 12. Which property of t-distribution is NOT a property of normal distribution? A. The t-distribution curve is bell-shaped. B. The t-distribution curve is symmetrical about zero. C. In t distribution, the variance is always greater than 1. D. The total area under the t distribution curve equal to 1. 13. The following statements tell about the t-distribution EXCEPT 4. The standard deviation of the t-distribution is equal to 1. 3. As the degrees of freedom increase, the t-distribution tends to normal distribution
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