Suppose that components have weights that are normally distributed with u = 100 and o = 10. An experimenter measures the weights of a random sample of 25 components in order to estimate u. What is the probability that the experimenter's estimate of u will be ess than 95? 1. 0 0,9772 0.9772 2. O 0.0062 0.0062 3. O 0.0228 0.0228 4. O 0.9938 0.9938
Suppose that components have weights that are normally distributed with u = 100 and o = 10. An experimenter measures the weights of a random sample of 25 components in order to estimate u. What is the probability that the experimenter's estimate of u will be ess than 95? 1. 0 0,9772 0.9772 2. O 0.0062 0.0062 3. O 0.0228 0.0228 4. O 0.9938 0.9938
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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As explained in the picture, pls give brief explaination
Transcribed Image Text:Suppose that components have weights that are normally distributed with u = 100 and o = 10. An experimenter measures the weights of a random sample of 25 components in order to estimate u. What is the probability that the experimenter's estimate of u will be
ess than 95?
1. O 0.9772
0.9772
2. O 0.0062
0.0062
3. O 0.0228
0.0228
4. O 0.9938
0.9938
Transcribed Image Text:To test the similarity of variance of the two populations I and II, a sample of 10 were taken
from population I and the variance was 24.7, while a sample of 13 were taken from
population II and the variance was 37.2 For the 0.05 level of significance and f(1-a)(12;9)
1/(fa(9,12) then the interval estimator for the ratio of variance o/o? is
1. O ketiganya salah
None of the above
(Sın)^2/(s)^2. f{a/2}[9;12) < (on)?/(01)*2 < (S1)/(sı)2. f(1-a/2|9:12)
(sı)^2/(sı)^2. f(a/2)(9;12) < (o1)^2/(01)^2 < (Sı)^2(s)^2. f(1-a/2)(9;12)
2. O
(Sı)^2/(s)^2+ f(1-a/2){12;9) < (O1)^2/(01)^2 < (Si)^2/(si)^2.
(Sı)^2/(s)^2. f(1-a/2)(12,9) < (o1)^2(01)^2 < (Sı)^2/(si)^2. f(a/2)(12;9)
f(a/2)(12;9)
*
3. O
(S)^2/(sı)^2. f(a/2)(12,9) < (O1)^2/(01)^2 < (S1)^2/(si)^2. f¢1-a/2)(12;9)
(Sı)"2/(si)^2. f(a/2)(12;9) < (o1)^2/(01)^2 < (S1)^?/(si)^2» f(1-a/2){12;9)
4. O
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