15. The sales of a company rose from40,000 in March to48,000 in April 2002.The company's seasonal indices for these two months are 105 and 140 respectively. The owner of thecompany expressed dissatisfaction with the April sales, but the Sales Manager said that he was quitepleased with the*the Sales Manager?The Sales Manager also predicted on the basis of the April sales that the total 2002 sales were going to8,000 increase. What argument should the owner of the company have used to reply tobe5,76,000. Criticise the Sales Manager's estimate and explain how the estimate of4,11,000 maybe arrived at.

Answered: Image /qna-images/answer/109b4426-3632-407d-a1be-b396ec900092.jpg

Answered: 15. The sales of a company rose from…

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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Please answer number 10. All parts! Show work! Thanks.
A study was undertaken to compare the average high-density lipoprotein (HDL) levels of normal and obese adults in a certain community. HDL levels of a random sample of adults from this community were measured (in milligrams per deciliter or mg/dL) and presented below. Assume that the HDL levels of both the normal and obese adults follow the normal distribution with unknown but equal population variances. Is there a significant difference between the average HDL levels of normal and obese adults? Use a 5% level of significance.
It is a 2 part question. How can we find normality?
18. Extrapolate the business done in 2018 from the following data : Year 2013 2014 2015 2016 2017 Business done: 150 235 365 525 780
4. The enrollment at Makayla's school was 714 students in August 2015. In August 2016, Makayla's school was expecting a 6% increase in enrollment. How many students did Makayla's school expect to have in August 2016?
2. The average test score of 8 students in a class is 92. Two slacker kids join the class and the test average drops to88 . If one of the slacker kids scored an 80, what did the other slacker students score ?
For each statement. decide whether descriptive statistics is used. O a. In 2013, the number of high school graduates will be 3.2 million students. Source: National Center for Education. O b. None of these. O C Researchers stated that the shape of a person's ears is related to the person's aggression. Source. American journal of Human Biology O d. A diet high in fruits and vegetables will lower blood pressure. Source: Institute of Medicine. O e. The total amount of estimated losses from hurricane Hugo was $4.2 billion. Source: Insurance Service Office
Based on the line graph shown, how did Google's stock price perform between March 2015 and August 2015? Alphabet/Google (GOOG) closing stock prices 800 750 700 650 600 550 500 450 Date (A The stock price increased. (B) There is not enough information to make a determination. The stock price decreased. D) There was no change. Stock price (USD) 2-Mar-2015 1-Apr-2015 1-May-2015 1-Jun-2015 1-Jul-2015 3-Aug-2015 1-Sep-2015 1-Oct-2015 2-Nov-2015 1-Dec-2015 4-Jan-2016 1-Feb-2016 1-Mar-2016
Atlantic hurricanes form off the western coast of Africa. As warm moist air rises, it begins to rotate around a low- pressure system. This rotation is sustained by warm ocean temperatures and a central low pressure. Once a sustained wind speed of 74 miles per hour is reached, the storm is considered a hurricane. As man-made climate change continues to increase the temperature of the Earth's oceans, it is expected that the strength of hurricanes will Typically, a lower central pressure within a hurricane's eye is associated with a higher wind speed. Here, statistical software (R/RStudio) will be used to explore this relationship by applying linear regression methods. Using a database of landfalling hurricanes in the United States, a linear regression will be used to correlate the central pressure of each hurricane to its maximum sustained wind speed. increase. Regression Plot y=942.196-0.884*x R^2=0.768 ----- ----------- -. •... •. 980 1000 940 960 900 920 Independent Variable (x)…
A company has 30 employees, including a director. The lowest salary among the 30 employees is $22,000. The director’s salary is $180,000, which is more than twice as much as anyone else’s salary. Decide for each of the following statements about the 30 salaries whether it is true, false, or you cannot tell on the basis of the information at hand. • The median salary is below $60,000.• The average salary is below $60,000.• If all salaries are increased by $1,000, that adds $1,000 to the average.• If the director’s salary is doubled, and all other salaries remain the same, that increases the average salary.• If the director’s salary is doubled, and all other salaries remain the same, that increases the median salary.• The standard deviation of the salaries is larger than $180,000
Virginia polled a large sample of individuals to find the percentage of students with known food allergies and the percentage of students without known food allergies. Which of the following could sufficiently display the data if only the two given categories are to be included? Select the correct answer below: bar graph pie chart either a pie chart or a bar graph neither a pie chart nor a bar graph
The bar graph shows median yearly earnings of full-time workers in the United States for people 25 years and over with a college education, by final degree earned.The median yearly salary of an American whose final degreeis a doctorate is $45 thousand less than twice that of an American whose final degree is a bachelor’s. Combined,two people with each of these educational attainments earn $198 thousand. Find the median yearly salary of Americanswith each of these final degrees.

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