3. a. What is the difference between time series and cross section data?3.b. What are the components of a time series? Explain with example.3.c. The following table gives hourly wages for three types of workers. Compute the Laspeyre's priceindex for hourly wages. In 2021-1, 450 Raj-Mistry, 500 brick layer, and 600 jogali were employed in theconstruction sector.Interpret your result.QuarterRaj-MistryBrick layerJogali2021-1150125502021-|175130602021-I||180140652021 -IV170135652022 -I160130602022-|16514068

Answered: Image /qna-images/answer/61edeb19-37ea-475b-946c-f3a81910a678.jpg

Answered: 3. a. What is the difference between…

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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Can you answer question 5 and 7 only
1. What is forecast? TIME SERIES 2. When is qualitative methods of forecasting used? 3. When can quantitative forecasting be used? 4. Define Time Series. 5. List and explain the 4 times series patterns.
I have an hour, I will be glad if you help
uIJIO 4G ? 00:41 VOLTE Mummy 3 minutes ago (c) Examine the consistency and adequacy of the following data to detemine- the frequencies of the remaining positive and ultimate classes.. N = 10,000, (A) = 1087, (B) = 286, (C) = 877, (CAB) = 281, (Caß) = 86, (YAB) = 78, (ABC) = 57
9
For a certain company, the monthly percentages of all shipments recelved on time over the past 12 months are 80, 82, 85, 83, 82, 84, 85, 84, 82, 83, 84, and 83. (a) Construct a time series plot. 86 86 86 86 85 85 85 84 84 84 83 82 82 81 80- 79 79 79 78 78 78 78 77 + 77 77 77 0 1 2 3 4 5 6 78 9 10 11 12 13 0 1 2 3 4 3 6 7 8 9 10 11 12 13 0 1 2 3 4 5 6 7 8 9 10 11 12 13 0 1 2 3 456 7 8 9 10 11 12 13 Month Month Month Month What type of pattern exists in the data? O The last two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a horizontal pattern. O Overall, the time series plot exhibits a consistent trend pattern. O The first two points may be an indication of a shift to a new level, but overall the time series plot exhibits a cyclical pattern. O The first two points may be an indication of a shift to a new…
Listed below are the numbers of unprovoked shark attacks worldwide for the last several years. Why is it that a dotplot of these data would not be very effective i helping us understand the data? Which of the following graphs would be most effective for these data: dotplot, stemplot, time-series graph, Pareto chart, pie char frequency polygon? 70 54 68 82 79 83 76 73 98 81 Why is it that a dotplot of these data would not be very effective in helping us understand the data? O A. The spread of the data is very small, so it would be nearly impossible to see any differences when represented graphically. B. The data set is too small for a dotplot to reveal important characteristics of the data. c. There are several duplicate values in the data and most graphical methods cannot accurately show duplicate values. O D. Even though the data are numeric, they are actually categorical data because each value is discrete. Which of the following graphs would be most effective for these data:…
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the data contained in the datafile named crudecost shows the U.S. refiner acquisition cost of crude oil in dollars per barrel (energy information administration website,February 3, 2014).a. construct a time series plot. What type of pattern exists in the data?
C8. According to the Pew Research Center (2015), recent immigrants are better educated than earlier immigrants to the United States. The change was attributed to the availability of better education in each region or country of origin. The percentage of immigrants 25 years of age and older who completed at least high school is reported in this table for 1970 to 2013. Write a statement describing the change over time in the percentage who completed at least a high school degree. 1970 1980 1990 2000 2013 Mexico 14 17 26 30 48 Other Central/South America 57 53 60 66 Asia 75 72 75 82 84 48 68 81 87 95 Europe 36 48 52 58 72 Caribbean 81 91 88 85 85 Africa Source: Pew Research Center, Modern Immigration Wave Brings 59 Million to U.S., Driving Population Growth and Change Through 2065, 2015. Retrieved from https://www.pewresearch.org/hispanic/2015/09/28/modern- immigration-wave-brings-59-million-to-u-s-driving-population-growth-and-change-through-2065/ 52
6. Section 5.7 Number 46 parts b and c only 46. According to the College Board, scores on the Math SAT for the class of 2017 had a mean of 527 and a standard deviation of 107. Assume that they are roughly normally distributed. a. What was the interval spanned by the middle 50% of scores? b. What was the interval spanned by the middle 68% of scores? c. How high must a student score in order to be in the top 2.5% of scores?
why. The durations (in minutes) of power failures at a residence in the last 6 years are listed below. 32 13 123 23 56 64 71 123 71 53 What is the mean duration? Select the correct choice below and fill in any answer box to complete your choice.

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