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40. What is the degree of freedom in a set of data if the sample size is 197 A. 17 B. 18 C. 19 D. 20

40. What is the degree of freedom in a set of data if the sample size is 197 A. 17 B. 18 C. 19 D. 20

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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40. What is the degree of freedom in a set of data if the sample size is 197 A. 17 В. 18 .. C. 19 D. 20 41. Given an area of 0.01 and degrees of freedom of 9, what is the t-value? C. 2.764 A. 2.681 B. 2.718 D. 2.821 42. What is the 90th percentile of the t-distribution with 10 degrees of freedom? A. 1.363 B. 1.372 C. 1.383 D. 1.812 43. To what percentile of the t-distribution does 2.583 belong to if the sample size is 17? A. 75h B. 90 C. 95 D. 99th 44. Which formula is to be used in finding the length of a confidence interval? A. LCI =|LCL-UCL B.L.CI = 2t () C. LCI = 2za/2) D. all of them 45. What is the length of the confidence interval given the following data: o = 0.5, n = 70, confidence level = 95%? A. 0.17 B. 0.18 C. 0.19 D. 0.23 46. Which formula is used in determining the minimum size needed when estimating the population mean? a/2 A. Z/2 B. on C. D. For numbers 47 to 49, refer to the given problem. A survey on 200 GAS students of Masipag Senior High School shows that they read on an average of 15.7 hours per week. The margin of error is 2.4 hours at a 95% confidence level. 47. What is the value of the margin of error? A. 2.2 В. 2.4 С. 15.7 D. 16.3
Transcribed Image Text:40. What is the degree of freedom in a set of data if the sample size is 197 A. 17 В. 18 .. C. 19 D. 20 41. Given an area of 0.01 and degrees of freedom of 9, what is the t-value? C. 2.764 A. 2.681 B. 2.718 D. 2.821 42. What is the 90th percentile of the t-distribution with 10 degrees of freedom? A. 1.363 B. 1.372 C. 1.383 D. 1.812 43. To what percentile of the t-distribution does 2.583 belong to if the sample size is 17? A. 75h B. 90 C. 95 D. 99th 44. Which formula is to be used in finding the length of a confidence interval? A. LCI =|LCL-UCL B.L.CI = 2t () C. LCI = 2za/2) D. all of them 45. What is the length of the confidence interval given the following data: o = 0.5, n = 70, confidence level = 95%? A. 0.17 B. 0.18 C. 0.19 D. 0.23 46. Which formula is used in determining the minimum size needed when estimating the population mean? a/2 A. Z/2 B. on C. D. For numbers 47 to 49, refer to the given problem. A survey on 200 GAS students of Masipag Senior High School shows that they read on an average of 15.7 hours per week. The margin of error is 2.4 hours at a 95% confidence level. 47. What is the value of the margin of error? A. 2.2 В. 2.4 С. 15.7 D. 16.3
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