1. Which of the following coefficients are the 95% confidence coefficients? A.+1.65 B.+1.96 2. When alpha is 0.01, confidence level is equal to A. 10% С. +2.40 D. ±2.58 C. 90% D. 99% В. 95% 3. Which of the following values illustrates confidence coefficients? A. 99% В. 1.96 4. Confidence interval is also knowns as A. Interval estimate С. 0.05 D. 35.75 C. interval coefficient D. alpha B. confidence coefficient
1. Which of the following coefficients are the 95% confidence coefficients? A.+1.65 B.+1.96 2. When alpha is 0.01, confidence level is equal to A. 10% С. +2.40 D. ±2.58 C. 90% D. 99% В. 95% 3. Which of the following values illustrates confidence coefficients? A. 99% В. 1.96 4. Confidence interval is also knowns as A. Interval estimate С. 0.05 D. 35.75 C. interval coefficient D. alpha B. confidence coefficient
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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Question
Answer the following
Transcribed Image Text:1. Which of the following coefficients are the 95% confidence coefficients?
A.+1.65
B.+1.96
2. When alpha is 0.01, confidence level is equal to
A. 10%
В. 95%
3. Which of the following values illustrates confidence coefficients?
A. 99%
В. 1.96
4. Confidence interval is also knowns as
A. Interval estimate
B. confidence coefficient
For numbers 5-11, refer to the following given values:
С. +2.40
D. ±2.58
С. 90%
D. 99%
С. 0.05
D. 35.75
C. interval coefficient
D. alpha
99% confidence level, o =7 and E = 2.
5. What is the given confidence level?
A. 99%
В. О.10
6. What is a?
C. 0.01
D. 0.05
A. 95%
В. О.10
7. What are the confidence coefficients?
A. ±1.645
B.±1.96
С. 0.01
D. 0.05
С. +2.20
D. ±2.58
8. Which of the following is the given population standard deviation?
А. 2
В. 2.58
С. 7
D. 99%
9. What is the margin of error?
А. 2
В. 2.58
10.Compute for the appropriate sample size.
Ä. 80
В. 81
11. If the confidence level is lowered to 90% what will be the appropriate sample
С. 7
D. 99%
С. 82
D. 83
size?
А. 34
B. 35
D. 37
12.What is the sample size needed if the margin of error is 30 and the standard
deviation of 45 with a 98% confidence level?
А. 16
В. 15
13. Calculate the sample size of the given data: E = 5, o= 20, with a 95%
confidence level.
С. 14
D. 13
A. 65
В. 64
14. Which of the following is NOT needed in computing the minimum sample size
for the estimation of the population mean?
A. sample mean
B. confidence level
15. Which of the following formulas is used to get the sample size of the
population?
С. 63
D. 62
C. margin of error
D. population standard deviation
Za
A. n = (2
C. n =
Za/2
B. n =
D. n (2
28
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