(b) Using an exponential smoothing technique with alpha = 0.2,(i) the forecast for Month 7 is(ii) the forecasting error for Month 4 is(iii) the mean absolute deviation is(to 2 d.p.) Given the following information:Month 1234560Demand 27 3034353942(a) Using the two-month weighted moving average with weights assigned to the oldest inorder 0.2 and 0.8,(i) the forecast for Month 7 is41.4(ii) the forecasting error for Month 5 is4.2(iii) the mean absolute deviation is3.6

Given information:Month123456Demand273034353942 Required:(Part a) Use 2-month weighted moving…

Answered: (b) Using an exponential smoothing…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 11PPS

See similar textbooks

Similar questions

Planetary Velocity The following table gives the mean velocity of planets in their orbits versus their mean distance from the sun. Note that 1AU astronomical unit is the mean distance from Earth to the sun, abut 93 million miles. Planet d=distance AU v=velocity km/sec Mercury 0.39 47.4 Venus 0.72 35.0 Earth 1.00 29.8 Mars 1.52 24.1 Jupiter 5.20 13.1 Saturn 9.58 9.7 Uranus 19.20 6.8 Neptune 30.05 5.4 Astronomers tell us that it is reasonable to model these data with a power function. a Use power regression to express velocity as a power function of distance from the sun. b Plot the data along with the regression equation. c An asteroid orbits at a mean distance of 3AU from the sun. According to the power model you found in part a, what is the mean orbital velocity of the asteroid?
Part B - 1. Spring/Winter or Fall/Winter 2. mean or standard deviation or median or interquartile range Part C - same options as B
Approximate the population mean and standard deviation of age for females. By the way, we find the midpoints by adding the first numbers before the hyphens in the age column and then dividing by 2 (ex: 0+10/2=5, 10+20/2=15, 20+30/2=25).
Number 103 part A,B, and C
A set of observations recorded at a time period like 3- yearly, 5 yearly etc. is taken in the method of ______________. a. Time Series b. Correlation c. Regression d. Standard deviation
Number 102 part A, B, and C
2. (2) Consider the wage equation In(wage) A+B EDUC + B,EDUC² +B,EXPER+B,EXPER+B,(EDUC EXPER)+e where the explanatory variables are years of education (EDUC) and years of experience (EXPER). Estimation results for this equation, and for modified versions of it obtained by dropping some of the variables, are displayed in Table 6.10 (see Table6 10.pdf in Canvas). These results are from 200 observations in the file cps5 small. Use a 5% level of significance for all tests. a) Use an F-test and the results in Eqn (A) and Eqn (B) to test H,:B.=0. b) Use an -test and the results in Eqn (A) to test H: B-0. Show that r-F obtained in part a). e) Use an F-test and the results in Eqn (A) and Eqn (C) to test H: B, = B, = B, -=0. d) Use an F-test and the results in Eqn (B) and Eqn (D) to test H,: B, = B, =0. e) Use an F-test and the results in Eqn (A) and Eqn (E) to test H:B, = B, =0.
For a period of 11 years, the figures in the accompanying table were found for annual change in unemployment rate and annual change in mean employee absence rate due to own illness. Year Change in UnemploymentRate Change in Mean Employee Absence Rate Due to Own Illness (Y) 1 -0.2 0.2 2 -0.1 0.2 3 1.4 0.2 4 1.0 -0.4 5 -0.3 -0.1 6 -0.7 0.2 7 0.7 -0.1 8 2.9 -0.8 9 -0.8 0.2 10 -0.7 0.2 11 -1.0 0.2 a. Estimate the linear regression of change in mean employee absence rate due to own illness on change in unemployment rate. b. Interpret the estimated slope of the regression line. thanks.
Number 103 part D and E
Table 1: Persons with secondary education Classes ✓ Class Boundarie Less than 50 Less than 54 Less than 58 Less than 62 Less than 66 Less than 70 ΝΑ 50-54 54-58 58-62 62-66 66-70 Classes Less than 8 Less than 11 Less than 14 Less than 17 Less than 20 Less than 23 Table 2: Persons with tertiary education- Frequency Class Boundarie ΝΑ 8-11 11-14 14-17 17-20 20-23 1 1 4 5 3 Frequency 2 3 3 4 3 Cumulative Frequenc 1 2 6 11 14 Cumulative Frequenc 2 5 8 12 15 Cumulative Relative Frequenc 0.0667 0.1333 0.4 0.7333 0.9333 Cumulative Relative Frequenc 0.1333 0.3333 0.5333 0.8 1 Cumulative percentage 6.70% 13.30% 40.00% 73.30% 93.30% Cumulative percentage 13.30% 33.30% 53.30% 80.00% 100.00%
Claims have mean $500, standard deviation $400 and are lognormally distributed. The insurance company purchases excess of loss (XL) reinsurance with retention level $800. Find: (a) The proportion of claims that will involve the reinsurer. (b) The expected claim size paid by the insurer. (c) The expected claim size paid by the reinsurer, for claims that involve the reinsurer. (d) The variance of claims paid by the insurer.
Illustratian 19.6. The mean produce of wheat of a sample of 1C0 fields comes to 200 kg. per acre with a standard deviation of l10 kg. Another somple of 150 fields gives the mean at 220 kg with a standard deviation of 12 kg. Assuming the standard deviation of the yield at 10 kg. for the universe, find out if there is significant diffe- rence between the mean yields of the two samples.

SEE MORE QUESTIONS

Recommended textbooks for you

Glencoe Algebra 1, Student Edition, 9780079039897…

Algebra

ISBN:

9780079039897

Author:

Carter

Publisher:

McGraw Hill

Functions and Change: A Modeling Approach to Coll…

Algebra

ISBN:

9781337111348

Author:

Bruce Crauder, Benny Evans, Alan Noell

Publisher:

Cengage Learning

Big Ideas Math A Bridge To Success Algebra 1: Stu…

Algebra

ISBN:

9781680331141

Author:

HOUGHTON MIFFLIN HARCOURT

Publisher:

Houghton Mifflin Harcourt

Glencoe Algebra 1, Student Edition, 9780079039897…

Algebra

ISBN:

9780079039897

Author:

Carter

Publisher:

McGraw Hill

Functions and Change: A Modeling Approach to Coll…

Algebra

ISBN:

9781337111348

Author:

Bruce Crauder, Benny Evans, Alan Noell

Publisher:

Cengage Learning

Big Ideas Math A Bridge To Success Algebra 1: Stu…

Algebra

ISBN:

9781680331141

Author:

HOUGHTON MIFFLIN HARCOURT

Publisher:

Houghton Mifflin Harcourt

College Algebra (MindTap Course List)

Algebra

ISBN:

9781305652231

Author:

R. David Gustafson, Jeff Hughes

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS