A corporation is interested in estimating the total carnings from sales of colour television sets atthe end of a three-month period. The total earnings figures are available for all districts withinthe corporation for the corresponding three-month period of the previous year. A simple randomsample of 13 district offices is selected from the 123 offices within the corporation.a)b)c)Use a ratio estimator to estimate the total earnings at the end of the three-month period.- 128,200.Take xUse the data below and find==1-582 2 different ways using both the formulacSp» = πλη (Σy, – Rxg)* = 1, Σy? - 28 Σx,y, + Σx?]n-112-1Estimate the standard error (standard deviation) of your estimate.

The question asks to estimate the total earnings from sales of color television sets at the end of a…

Answered: A corporation is interested in…

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

Construct simple average price relative index number using geometric mean for the year 2015 for the data showing the expenditure in education of the children taking different courses. Expenditure per year 2014 2015 B.Sc 24000 26000 B.Com 20000 22000 B.E 108000 12000 M.B.B.S 150000 168000
5. Market share of electric vehicles rose from 1.13% in 2017 to 2.1% in 2018.(a) What is the increase in market share in percentage points?(b) What is the percent increase in market share?
- The percent increase in enrollment at a junior college for the last 5 years were 9.8%, 14.8%, 12.7%, 10.9% and 18.7%. Determine the geometric mean percent increase over the last 5 years.
A. Find the proportion runners with the time less than 160 minutes? Show work B. Find the proportion of times 201 minutes or 209 minutes ? Show work C. Describe the shape of the distribution? Identify the class that contains the 50th percentile. is this a typical time ?identify the runners in the 50th percentile. Show work
Calculate the arithmetic average of the following by the direct method : Number of labourers Weekly wages (in Rupees) 11-13 13-15 15-17 17-19 19-21 21-23 23-25 25 3. 4 564 43
The table below represents the number of portable household generators sold by 20 Gauteng-based enterprises in the fourth quarter of 2022. 35 50 66 45 25 79 31 42 19 41 5 75 62 48 69 56 83 45 39 98 Given that the average selling price of a portable household generator was R15, 000 during the fourth quarter of 2022, what is the expected total revenue generated from the sale of the portable household generators by all the enterprises that sold at least 60 portable household generators during the quarter? Using the raw data, determine the standard deviation and coefficient of variation of the sample data. Given that the average selling price of a portable household generator was R15, 000 during the fourth quarter of 2022, what is the expected total revenue generated from the sale of the portable household generators by all the enterprises that sold at least 60 portable household generators during the quarter? 2. To extract…
The IRS is interested in estimating the total number of tax accounts who has their own tax returns audited last year. If a random sample of 80 returns showed that 12 were audited, develop a 95% interval estimate for true proportion (population proportion) of tax accounts who had their returns audited last year.
C6. How many hours per week do you spend on e-mail? Data are presented here for a GSS sample of 99 men and women, who each reported the number of hours they spent per week on e-mail. a. Compute the cumulative frequency and cumulative percentage distribution for the data. b. What proportion of the sample spent 3 hours or less per week on e-mail? C. What proportion of the sample spent 6 or more hours per week on e-mail? d. Construct a graph that best displays these data. Explain why the graph you selected is appropriate for these data. E-mail Hours per Week Frequency 19 20 1 13 2 2 4 6. 6. 2 8. 1 6. 23 10 or more 7.
Twelve percent of the world's population is left-handed. A researcher claims that left-handed individuals are more creative than those who aren't left-handed. In order to support his claim, he takes a sample of 1650 artists and finds that 14% of.them are left-handed. Español Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p is the proportion of left-handed individuals in a random sample of 1650. 00 (b) Find the standard deviation of p. (c) Compute an approximation for P (p s0.14), which is the probability that there will be 14% or fewer left-handed people in a random sample of 1650. Round your answer to four decimal places. Save For Later Submit Assignment Check Terms of Use Privacy Center Accessibility acer esc backspa
2. The Ghana Revenue Authority (GRA) publishes annual figures on individual income tax returns in Statistics of Income, Individual Income Tax Returns. For the year 2009, the GRA reported that the mean tax of individual income tax returns was GH¢ 10,319. In actuality, the GRA reported the mean tax of a sample of 292,966 individual income tax returns from a total of more than 130 million such returns. a. Identify the population under consideration. b. Identify the variable under consideration. c. Is the mean tax reported by the GRA a sample mean or the population mean? d. Should we expect the mean tax x, of the 292,966 returns sampled by the GRA to be exactly the same as the mean tax, u, of all individual income tax returns for 2009? e. How can we answer questions about sampling error? For instance, is the sample mean tax x reported by the GRA likely to be within GHC 100 of the population mean tax, p?
alo Smart phone: Among 248 cell phone owners aged 18-24 surveyed, 104 said their phone was an Android phone. Part: 0 / 3 Part 1 of 3 (a) Find a point estimate for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of cell phone owners aged 18-24 who have an Android phone is Part: 1/3 Part 2 of 3 (b) Construct a 99.5% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answers to at least three decimal places. A 99.5% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone is
The average weekly incomes, in £s, of 18 selected occupations in the United Kingdom were: 244, 146, 278, 396, 435, 641, 577, 122, 294 357, 802 730, 286, 484, 169,, 559, 208, 498 Draw a box plot to represent these incomes. - UB = - Highest = - Q1 = - Q2 = - Q3 = - Lowest = - LB = Calculate the mean weekly income and the standard deviation.

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