59. The salaries paid to the managers of a company had a mean of Rs 20,000 with astandard deviation of Rs. 3,000. What will be the mean and standard deviation if all the salaries areincreased by (i) 10%, (ii) 10% of the existing mean ?Which policy would you recommend if the management does not want to have increased disparitiesin waves ?

Answered: Image /qna-images/answer/0d0deb8b-747b-43b7-b377-83e255dbdd3a.jpg

Answered: 174 59. The salaries paid to the…

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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Similar questions

A set of 1100 exam scores is normally distributed with a mean = 78 and standard deviation = 4.How many students scored higher than 78? How many students scored between 74 and 82? How many students scored between 70 and 86? How many students scored between 78 and 82? How many students scored lower than 74? How many students scored lower than 82?
The table below shows some data fromn a known international clothing company. Each row in the table shows sales for a year (in million) and the amount spent on advertising that year (in million). In this case, sales is what we want to predict using the advertising budget. Find the following. Given that: Mean of Advertising =15 and standard deviation = 5 Mean of Sales= 45 and standard deviation = 10 Advertising (Million) Sales (Million) 19 54 10 28 12 43 17 47 8 32 15 50 22 65 1. Find the correlation coefficient (r). Determine the direction and strength of the relationship? 2. Find the Coefficient of determination. Explain the result (is it a useful model)? 3. Compute and draw Regression line model. 4. Compute the mean absolute error for this regression model.
# 6- A set of data items is normally distributed with a mean of 90 and a standard deviation of 5. Convert 90 to a z-score.
8. A list of exam scores shows that the raw score of X = 50 corresponds to z = -2.00 and a raw score of X = 62 corresponds to z = +1.00. Find the mean and standard deviation for the distribution of raw scores.
If a set of observations is normally distributed, what percent of these differ from the mean by (a) more than 2.50? (b) less than 0.640?
According to the Empirical Rule, in a Normal Distribution of data you will have percent of the data within 1 standard deviation of the mean, percent of the data within 2 standard deviation of the mean, and percent of the data within 3 standard deviation of the mean.
5.
6. Scientists estimate that the distribution of the life span of the Galápagos Islands giant tortoise is approximately normal with mean 100 years and standard deviation 15 years. Based on the estimate, which of the following is closest to the age of a Galápagos Islands giant tortoise at the 90th percentile of the distribution? (A) 80 years (B) 115 years (C) 120 years (D) 125 years (E) 130years
A quantity measured 50 times results in a mean x=23.345 +/- 0.0022 What is the standard deviation? What number of measurements will cut the standard deviation of the mean half? If a 100 measurement are taken, what is the new standard deviation?
A sample of people have their income measured in dollars per year. Robin gets a deviation of +5 on this variable. How does she compare to the sample? Her annual income is 5 standard deviations higher than the mean Her annual income is 5 dollars higher than the mean Her annual income is 5 points higher than the mean The mean of the sample is 5 thousands dollars higher than Robin’s income

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