Q5. X has the population distribution X- N(u, 100), The distribution of asample mean from a random sample has the distribution:X ~ N(-1, 4)What is the sample size?Α. 10В. 16С. 25D. 5O A. AВ. ВС. СO D. D

Answered: Image /qna-images/answer/1f3a0dc7-31c5-451b-9549-1ca7ea3c1364.jpg

Answered: Q5. X has the population 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

See similar textbooks

Similar questions

Assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard deviation of 1. Draw a graph and find the probability of a bone density test score between - 1.62 and 1.62. Sketch the region. Choose the correct graph below. A. В. С. D. -1.62 1.62 -1.62 1.62 -1.62 1.62 -1.62 1.62 The probability is. (Round to four decimal places as needed.)
A sample of 3 measurements are taken and recorded: a =8, y = 10 and z = 7 The sample mean is: x = = 8.33 Fill in the table below. aj (a; - x)2 Ex: 5.34 Ex: 5.34 Ex: 5.34 82 = (z-z)*+(y-a)* +(z-z) Ex: 5.34 (z-2)*+(y-z)* +(z-) = Ex: 5.34
X~ N(10,12). Suppose that you form random samples of 16 from this distribution. Let be the random variable of averages. Let EX be the random variable of sums. Round all answers to two decimal places. A. ~ N( B. P( 150) =
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X = IQ of an individual. X ~ _____(_____,_____) Find the probability that the person has an IQ greater than 120. 0.05 B. 0.08 C. 0.09 D. 0.06 E. 0.07 Find the probability that the person has an IQ between 90 and 115. 0.589 B. 0.664 C. 0.732 D. 0.531 E. 0.469 Find the 60th percentile 98.6 B. 100.0 C. 103.8 D. 105.4 E. 108.5
4.52 Random variables X and Y follow a joint distribution f(x, y) = = 2, 0< x≤y< 1, otherwise. 0, Determine the correlation coefficient between X and Y.
Assume that the amount of weight that male college students gain during their freshman year are normally distributed with a. Mean of u= 1.2 kg and a standard deviation of o= 5.1 kg A. If 1 male college student is randomly selected, Find the probability that he gains between 0 and 3 kg during freshman year B. If 25 male college students are randomly selected find the probability that their mean weight gain during freshman year is between 0 and 3 kg why can the normal distribution be used on pet b even though the sample size does not exceed 30?
What is the probability
11-
Angume that the random variable X is normally distributed, with mean u= 45 and standard deviation o = 14. Compute the probability P(55
SUBPART, need help solving the problem. Label each part
Q8. TheRandom variable, Z ~ N(0,1). Identify the correct statements: Z is the Standard Normal variate. Z can take values from -o to +o. Pr(Zk). I. П. III. www A. I only B.I. and II. C. II and III. only. D. I. , II. and III. ww О А. А В. В О С. С O D. D
X ~ N(70, 11). Suppose that you form random samples of 25 from this distribution. Let X be the random variable of averages. Let EX be the random variable of sums. O Part (a) O Part (b) O Part (c) O Part (d) Find the 40th percentile. (Round your answer to two decimal places.) O Part (e) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(66 < X< 72) = O Part (f) Sketch the graph, shade the region, label and scale the horizontal axis for X, and find the probability. (Round your answer to four decimal places.) P(28 < X< 66) = O Part (g) Give the distribution of EX. ΣΧ- O Part (h) Find the minimum value for the upper quartile for EX. (Round your answer to two decimal places.) O Part (i) Sketch the graph, shade the region, label and scale the horizontal axis for EX, and find the probability. (Round your answer to four decimal places.) P(1650<ΣΧ< 1800) -

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS

Q5. X has the population distribution X~ N(µ, 100), The distribution of a sample mean from a random sample has the distribution: X ~ N(-1, 4) What is the sample size? A. 10 В. 16 С. 25 D. 5 О А. А О В. В О С. С O D. D