Central Limit Theorem for Sums39 are collected from an unknown distribution with the propertiesSuppose random samples of n =57 and o = 4.a. Determine the mean of EX.b. Determine the standard deviation of EX.(Include four decimal places.)

It is given that Sample size n = 39 Mean μ = 57 and SD σ = 4

Answered: a. Determine the mean of EX. b.…

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

The average score on a statistics test was 2.36 with a standard deviation of 0.69. The professor suspects that the test was very difficult; accordingly, he wishes to adjust the scores so that the mean is 3.97 and the standard deviation is 0.25. Calculate the a and b values so that the aX+b type adjustment gives the desired mean and variance? Calculate: a= b=
A blood pressure test was given to 450 women ages 20 to 36. It showed that their mean systolic blood pressure was 119.2 mm Hg, with a standard deviation of 12.1 mm Hg. (a) Determine the z-score, to the nearest hundredth, for a woman who had a systolic blood pressure reading of 112.2 mm Hg.______(b) The z-score for one woman was 2.11. What was her systolic blood pressure reading? (Round your answer to one decimal place.) _____mm Hg
Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 133 adult males, the pulse rates have a standard deviation of 9.8 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
Use z scores to compare the given values. Based on sample data, newborn males have weights with mean of 3204.8 g and a standard deviation of 770.8 g. Newborn females have weights with a mean of 3066.5 g and a standard deviation of 585.9 g. Who has the weight that is more extreme relative to the group from which they came: a male who weighs 1600 g or a female who weighs 1600 g? Since the z score for the male is z= and the z score for the female is z= the V has the weight that is more extreme. (Round to two decimal places.)
Claim: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample of 134 adult males, the pulse rates have a standard deviation of 11.2bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
Suppose you buy a new car whose advertised mileage is 20 miles per gallon (mpg). After driving your car for several months, you find that its mileage is 16.5 mpg. You telephone the manufacturer and learn that the standard deviation of gas mileages for all cars of the model you bought is 1.02 mpg. a. Find the z-score for the gas mileage of your car, assuming the advertised claim is correct. b. Does it appear that your car is getting unusually low gas mileage? Question content area bottom Part 1 a. z=enter your response here (Round to two decimal places as needed.)
A queueing system has an arrival rate of 37 visitors per day (standard deviation of 32) and a service rate of 42 visitors per day (standard deviation of 25). (Round your answer to three decimal places.) What is the coefficient of variation of the arrival rate?
1) Which is relatively better: a score of 88 on a Psychology test or a score of 45 on an Economics test? Scores on the Psychology test have a mean of 92 and a standard deviation of 10. Scores on the Economics test have a mean of 57 and a standard deviation of 5. Use measures of relative position to answer this exercise (Z-score).
Claim: The standard deviation of pulse rates of adult males is less than 10 bpm. For a random sample of 173 adult males, the pulse rates have a standard deviation of 8.9 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed)
Claim: The standard deviation of pulse rates of adult males is more than 10 bpm. For a random sample of 157 adult males, the pulse rates have a standard deviation of 10.9 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
Claim: The standard deviation of pulse rates of adult males is less than 11 bpm. For a random sample of 128 adult males, the pulse rates have a standard deviation of 10.8 bpm. Find the value of the test statistic. The value of the test statistic is (Round to two decimal places as needed.)
A population of N = 5 scores has a mean of µ = 20 and a standard deviation of σ = 4. Which of the following is the correct interpretation of the standard deviation? The average distance of scores from the mean of µ = 20 is 5 points. The average distance of scores from the mean of µ = 20 is 1 point. The average distance of scores from the mean of µ = 20 is 4 points. The average squared distance of scores from the mean of µ = 20 is 4 points.

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

a. Determine the mean of EX. b. Determine the standard deviation of EX.