2. The phone rings and the President is calling you. He says, 'Can you please tell me howmuch of the variability of my popularity rating is explained by the inflation rate? This isthe data:Inflation 10128|14ratePopularity70Rating75858448

Let us consider inflation rate as X and popularity rating as Y. Excel Procedure: Enter X and Y in…

Answered: 2. The phone rings and the President is…

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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Education pays off, according to some data from a study. The median weekly earnings and the unemployment rates for eight different levels of education are shown in the table. Educational Attainment Doctoral degree (Dr) Professional degree (Prf) Master's degree (MS) Bachelor's degree (BS) Associate degree (AS) Some college, no degree (SC) High school diploma (HS) Less than a high school diploma (NHS) Unemployment Rate (%) 1.7 1.7 2.5 2.6 3.5 4.3 5.3 7.5 Median Usual Weekly Earnings ($) 1,665 1,747 1,382 1,155 820 757 690 505 Note: Data are for persons aged 25 and over. Earnings are for full-time wage and salary workers.
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Inflation 2011 The Consumer Price Index (CPI) tracksthe prices of consumer goods in the United States, asshown in the following table. The CPI is reportedmonthly, but we can look at selected values. The tableshows the January CPI at five-year intervals. It indicates,for example, that the average item costing $17.90 in 1926cost $220.22 in the year 2011.a) Make a scatterplot showing the trend in consumerprices. Describe what you see.b) Be an economic forecaster: Project increases in thecost of living over the next decade. Justify decisionsyou make in creating your model.
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PART A The following table shows quarterly sales (in thousand units) for a product over 4 years. The overall sales average for the entire 4 years is 156.5625 (thousand units). Fill in the missing values assuming there is no trend. Round seasonal indexes to 4 decimal places. Report Averages accurate to at most 2 decimal places. Report Actual sales ('000) accurate to the nearest integer. Year 1 Year 2 Year 3 Year 4 Average Seasonal Index Quarter 1 86 93 95 0.6004 Quarter 2 205 207 198 1.2838 Quarter 3 154 159 153 175 160.2 1.023 Quarter 4 184 167 158 175 171 1.092 PART B Suppose actual quarterly sales (in thousands) for Year 5 are 82, 196, 178, and 180 respectively. Assuming there is no trend, forecast sales for the four quarters of Year 5. Use seasonal indexes (rounded to 4 decimal places) from Part A. Report forecast answers as integers accurate to the nearest thousand. Quarter 1 forecast = thousand Quarter 2 forecast= thousand Quarter 3 forecast= thousand Quarter 4 forecast= thousand…
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2. The phone rings and the President is calling you. He says, 'Can you please tell me h much of the variability of my popularity rating is explained by the inflation rate? This the data: Inflation 10 12 8 6 14 Irate