Q. 24. From the following data of wages of 200 workers of a factory,compute the first moments about the value 125 and the mean. Also findthe value of B, B, and 1, 2.WagesNo. of workers100-11020110-12040120-13090130-14025140-15016150-1609.

Answered: Image /qna-images/answer/354a3125-1b89-4e62-a9f9-aa0f406352d1.jpg

Answered: Q. 24. From the following data of wages…

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

Q1/The following table represents the number of lectures on engineering statistics for the second stage, the Department of Electrical Engineering, distributed throughout the week. Required: Find the weighted arithmetic mean and squared mean and indicate the days of the lecture? number of lectures 4 30-40 40-50 50-60 60-70 70-80 80-90 90-100 6 8 4 6 4 8
W 1. X A tablet computer manufacturer claims that its batteries last an average of 10.5 hours when playing videos. The quality control department randomly selects 20 tablets from each day's production and tests the batteries by playing a video repeatedly until the battery dies. The quality control department will reject the batteries from that day's production run if the mean battery life is less than 10.5 hours. Here are the data from one day: 10.3 10.0 10.3 10.6 10.5 10.3 10.1 10.6 11.5 10.3 10.3 12.7 10.6 11.3 13.9 12.5 12.4 10.8 10.2 12.2 The quality control department will test the hypotheses where p true mean battery life (in hours) while playing videos for tablets made during that day. Check that the conditions for performing the test are met. Assume the population is normally distributed. 3 e d C Ho:μ = 50 Ha:μl < 50 $ 4 f 25 % V t 6 (6 b Y h ∞ 7 u n * 00 8 ¡ m ( 9 k O Sign out 1 р Mar 29 7
2. (MMC 6.43). The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Each score ranges from 0 to 200. The mean attitude score for U.S. college students is about 110, and the standard deviation is about 25. A teacher who suspects that older students have better attitudes toward school gives the SSHA to 25 students who are at least 30 years of age. Their mean score is = 118.3. a. Assuming that o = 25 for the population of older students, carry out a test of Họ: H = Ha:u > 110 Report the P-value of your test and state your conclusion clearly. = 110 b. What are the required assumptions in part (a)?
Q-4 The following data represent the production per day turned out by 5 different workers using 4 different types of machines. Workers Machine Type A B D 44 39 47 36 2. 46 41 52 43 34 36 40 32 4 44 39 46 33 38 49 47 39 6. 34 39 21 23 (a) Test whether the mean productivity is the same for the different machine types. (b) Test whether the 5 men differ with respect to mean productivity.
The ages of a random sample of motorcyclists when they were fatally injured in traffic crashes were recorded and tabled below: Age (in years) Below 16 1628 28 - < 40 40 - < 52 52 - < 64 64 - <76 B. 0.55 C. 0.44 Frequency 0 2 6 10 13 5 D. 0.50 Midpoints The relative frequency of motorcyclist's aged between 20 and 50 who were fatally injured in traffic crashes is (rounded off to two decimals): A. 0.38 22 34 46 58 70 Cumulative freq. 0 2 8 18 31 36
Calculate the arifhmetic mean of the following data : 90-80 80-70 70–60 | 60–50 50-40 | 40-30 30-20 10 X : 110-100 100-90 20-10 10-0 4 8 16 16 24 18 14 4
Q1. A psychologist conducted a study on the relationship between introversion and shyness. The values are results for scales of introversion and shyness. High positive scores on each scale indicate high introversion or shyness; and high negative scores indicate low introversion or shyness. Data collected from 10 people as follows: Introversion 4 -7 -1 0 6 7 -4 -9 -5 8 Shyness 11 -7 -1 -3 0 7 -1 -8 -1 5 a) Compute the correlation coefficient relating introversion and shyness scores. b) Find the regression equation which predicts introversion from shyness. c) What introversion score would you predict from a shyness score of 7?
43. From the following data compute the value of harmonic mean: 20-30 30-40 40-50 10-20 50-60 Class interval 6 S 10 7. Frequency
The table below shows the data on Covid 19 cases recorded in country B. Age 50 - 55 45 - 50 40 - 45 35 - 40 30 - 35 25 – 30 20 – 25 Cases 25 30 40 45 170 110 80 Find the values of the following The mean The median
find the mean for the following data leaf steam 2 4 9. 3 4 9. 7 1 6 8 2 6 24 6 1 67 N 5
Statistic. Help me answer from 1-20 items

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

Q. 24. From the following data of wages of 200 workers of a factory, compute the first moments about the value 125 and the mean. Also find the value of B, B, and 1, 2. Wages No. of workers 100-110 20 110-120 40 120-130 90 130-140 25 140-150 16 150-160 9.