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(a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? O Yes, the x distribution is normal with mean µ , = 90 and o = 2. O Yes, the x distribution is normal with mean u , = 90 and o , = 0.5. O Yes, the x distribution is normal with mean u, = 90 and o , = 8. O No, the sample size is too small. (b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16? O Yes, the x distribution is normal with mean µ, = 90 and o; = 2. O Yes, the x distribution is normal with mean u, = 90 and o , = 0.5. O Yes, the x distribution is normal with mean u , = 90 and o, = 8. O No, the sample size is too small. Find P(86 < x < 91). (Round your answer to four decimal places.)

(a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? O Yes, the x distribution is normal with mean µ , = 90 and o = 2. O Yes, the x distribution is normal with mean u , = 90 and o , = 0.5. O Yes, the x distribution is normal with mean u, = 90 and o , = 8. O No, the sample size is too small. (b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16? O Yes, the x distribution is normal with mean µ, = 90 and o; = 2. O Yes, the x distribution is normal with mean u, = 90 and o , = 0.5. O Yes, the x distribution is normal with mean u , = 90 and o, = 8. O No, the sample size is too small. Find P(86 < x < 91). (Round your answer to four decimal places.)

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
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Suppose x has a distribution with ? = 90 and ? = 8.
 
(a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means?
A. Yes, the x distribution is normal with mean ? x = 90 and ? x = 2.
B. Yes, the x distribution is normal with mean ? x = 90 and ? x = 0.5.    
C. Yes, the x distribution is normal with mean ? x = 90 and ? x = 8.
D. No, the sample size is too small.
 
(b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16?
A. Yes, the x distribution is normal with mean ? x = 90 and ? x = 2.
B. Yes, the x distribution is normal with mean ? x = 90 and ? x = 0.5.    
C. Yes, the x distribution is normal with mean ? x = 90 and ? x = 8.
D. No, the sample size is too small.
 
Find P(86 ≤ x ≤ 91). (Round your answer to four decimal places.)
Suppose x has a distribution with u = 90 and o = 8. n USE SALT (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? O Yes, the x distribution is normal with mean u , = 90 and o, = 2. O Yes, the x distribution is normal with mean u , = 90 and o, = 0.5. O Yes, the x distribution is normal with mean u , = 90 and o, = 8. O No, the sample size is too small. (b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16? O Yes, the x distribution is normal with mean u , = 90 and o, = 2. O Yes, the x distribution is normal with mean u , = 90 and o; = 0.5. O Yes, the x distribution is normal with mean u, = 90 and o; = 8. O No, the sample size is too small. Find P(86 < x < 91). (Round your answer to four decimal places.)
Transcribed Image Text:Suppose x has a distribution with u = 90 and o = 8. n USE SALT (a) If random samples of size n = 16 are selected, can we say anything about the x distribution of sample means? O Yes, the x distribution is normal with mean u , = 90 and o, = 2. O Yes, the x distribution is normal with mean u , = 90 and o, = 0.5. O Yes, the x distribution is normal with mean u , = 90 and o, = 8. O No, the sample size is too small. (b) If the original x distribution is normal, can we say anything about the x distribution of random samples of size 16? O Yes, the x distribution is normal with mean u , = 90 and o, = 2. O Yes, the x distribution is normal with mean u , = 90 and o; = 0.5. O Yes, the x distribution is normal with mean u, = 90 and o; = 8. O No, the sample size is too small. Find P(86 < x < 91). (Round your answer to four decimal places.)
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