Publications by Jack Tortolani
Week 2 Code Along
Welcome Ch1 Introduction The data science project workflow Prerequisites R RStudio r packages Install the tidyverse package Running R code 1+2 ## [1] 3 Getting help Google Stackoverflow Ch2 Introduction to Data Exploration Ch3 Data Visualization Set up library(tidyverse) data mpg ## # A tibble: 234 × 11 ## manufacturer model d...
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Best Practices 1
Chapter 1 It’s Not Just about Forecasting The following are the key points in the chapter. Elaborate on each point in at least 30 words. Understanding economics can help you to diagnose the causes of increases or decreases in sales volumes and costs. Economics can help us diagnose the causes of sales increases or decreases because say the...
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Real world applications 1
Company Grappone Automotive Group Characteristics of the company The Company I am researching is Grappone Automotive Group. The Company was founded in 1925 and since then has ammassed a total of 99 Employees. Amanda Grappone leads the company as CEO, with Larry Haynes as President and James Snedeker as Business Manager. The company last repo...
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Best Practice 2
## # A tibble: 1,096 × 5 ## # Groups: symbol [8] ## symbol date price change text ## <chr> <date> <dbl> <dbl> <glue> ## 1 GDPC1 1947-01-01 2034. NA 1947.1, ## Growth: NA ## 2 GDPC1 1947-04-01 2029. -0.00267 1947.2, ## Growth: -0.3% ## 3 GDPC1 1947-07-01 2025. -0.00207 1...
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Real World Applications 2
## # A tibble: 548 × 5 ## # Groups: symbol [4] ## symbol date price change text ## <chr> <date> <dbl> <dbl> <glue> ## 1 GDPC1 1947-01-01 2034. NA 1947.1, ## Growth: NA ## 2 GDPC1 1947-04-01 2029. -0.00267 1947.2, ## Growth: -0.3% ## 3 GDPC1 1947-07-01 2025. -0.00207 194...
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Best Practice 3
Chater Openning Questions Managers need to know: Summary Causes of Recessions How it works Associated Recessions monetary policy The Fed can slow the economy by tightening monetary policy, which decreases the money supply and/or raises interest rates. Higher interests reduce economic activity by increasing financing costs. all recessions? Th...
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RealWorldApplications3
Economic Dashboard Market Indicators Economic Indicators What is your reading of the economy? Make your argument based on your analysis of the given charts. Discuss timing and depth of changes in the economic data relative to recessions in at least 50 words. Looking at market indicators the 2001 crash and 2007 Great recession a drop in home...
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Best Practices 4
Chater Openning Questions A manager needs to monitor: The facts about inflation Volatility: CPI < PPI Finished Goods < PPI Intermediate Goods < PPI Crude Materials Price Growth: CPI > PPI Finished Goods > PPI Intermediate Goods > PPI Crude Materials There are thousands of specific indexes to choose from. So it is important to pick a correct ...
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Real World Applications 4
Economic Dashboard Grappone outputPrice = Consumer Price Index for All Urban Consumers: New Vehicles in U.S. City Average inputPrice = Producer Price Index by Industry: New Car Dealers: New Vehicle Sales What is happening to your client business’s profit margin? Make your argument based on your analysis of the given charts Based on the dat...
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Best Practices 5
Chapter Opening Questions A manager needs to monitor: The company’s vulnerability to a recession. they need to sketch out a contingency plan for dealing with a recession. Also build flexibilty into the day to day operations. And Develope an early warning system for identifying coming turn downs. ## Summary Managing through the Business Cycl...
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