37. What is the other term for t-distribution? A. Percentile distribution C. Sampling distribution D. Student's t-distribution B. Probability distribution
37. What is the other term for t-distribution? A. Percentile distribution C. Sampling distribution D. Student's t-distribution B. Probability distribution
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
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NOTE: no need for explanation, just answer each number with correct letter.
Transcribed Image Text:37. What is the other term for t-distribution?
A. Percentile distribution
C. Sampling distribution
D. Student's t-distribution
B. Probability distribution
38. How does t-distribution differ from a narmal distribution?
A. The t-distribution is centered at 0.
B. The t-distribution has a higher peak.
C. The t-distribution has a thicker tail.
D. The t-distribution is symmetric at the middle.
39. Which of the following probability distribution curves has the lowest peak?
A. the standard normal distribution
В.
a t-distribution with 10 degrees of freedom
C. at-distribution with 15 degrees of freedom
D. at-distribution with 20 degrees of freedom
40. What is the degree of freedom in a set of data if the sample size is 197
A. 17
B. 18.
С. 19
D. 20
41. Given an area of 0.01 and degrees of freedom of 9, what is the t-value?
A. 2.681
B. 2.718
C. 2.764
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?
Za2n
C.
A.
В.
D.
E
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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