Publications by Bharani Nittala, Eric Lehmphul, Joshua Hummell
624 Project 2
Instructions This is role playing. I am your new boss. I am in charge of production at ABC Beverage and you are a team of data scientists reporting to me. My leadership has told me that new regulations are requiring us to understand our manufacturing process, the predictive factors and be able to report to them our predictive model of pH. Pleas...
9906 sym Python (31955 sym/70 pcs) 21 img
Joshua Hummell Capstone
Joshua Hummell Abstract The Advertising team for Samsung Ecommerce sales wants to change they way they prepare spend for monthly budgets. Traditionally, they have built small models in Excel to help allocate budget given to them from the Samsung team. However, as the budgets have grown and uncertainty has risen, the traditional budgeting methods a...
37705 sym R (55978 sym/32 pcs) 13 img
Homework 8 Data 624 Joshua Hummell
Joshua Hummell Homework 8 7.2 set.seed(42) #install.packages("earth") library('urca') library("fpp3") ## ── Attaching packages ────────────────────────────────────────────── fpp3 0.5 ── ## ✔ tibble 3.2.1 ✔ tsibble 1.1.3 ## ✔...
1614 sym R (11401 sym/47 pcs) 3 img
Literature Review
Literature Review The literature review encompasses several different topics that, when combined, create a holistic proposal for an effective Marketing Mix Model. Marketing Mix Models To get a holistic picture on Marketing Mix Models, we started by looking at Hierarchical Marketing Mix Models with Sign Constraints, Chen, Hao, et al. (2021), w...
16549 sym
Linear Regression Joshua Hummell
Project 1 6.2 6.2. Developing a model to predict permeability (see Sect. 1.4) could save significant resources for a pharmaceutical company, while at the same time more rapidly identifying molecules that have a sufficient permeability to become a drug: A Start R and use these commands to load the data: The matrix fingerprints contains the 1,...
3741 sym R (7206 sym/42 pcs) 5 img
Project 1 Joshua Hummell
Project 1 Part A In part A, I want you to forecast how much cash is taken out of 4 different ATM machines for May 2010. The data is given in a single file. The variable ‘Cash’ is provided in hundreds of dollars, other than that it is straight forward. I am being somewhat ambiguous on purpose to make this have a little more business feeling...
7665 sym Python (25387 sym/101 pcs) 51 img
Hummell Joshua ARIMA Homework
9.1 Figure 9.32 shows the ACFs for 36 random numbers, 360 random numbers and 1,000 random numbers. ## 9.1a) Explain the differences among these figures. Do they all indicate that the data are white noise? Each figures has different spikes and also the size of their bounded areas are different. They indicate that they are white noise because the...
7150 sym Python (9883 sym/66 pcs) 32 img
Hummell Joshua Exponential Smoothing Homework
Exponential Smoothing Homework 8.1 Consider the the number of pigs slaughtered in Victoria, available in the aus_livestock dataset. Use the ETS() function to estimate the equivalent model for simple exponential smoothing. Find the optimal values for \(\alpha\) and \(\ell_0\), and generate forecasts for the next four months. # First, let's get...
3798 sym R (13955 sym/63 pcs) 14 img
Homework 4 Data 624 Joshua Hummell
## ── Attaching packages ────────────────────────────────────────────── fpp3 0.5 ── ## ✔ tibble 3.1.8 ✔ tsibble 1.1.3 ## ✔ dplyr 1.1.0 ✔ tsibbledata 0.4.1 ## ✔ tidyr 1.3.0 ✔ feasts 0.3.0 ## ✔ lub...
3251 sym R (13925 sym/25 pcs) 5 img
Data 624 Homework Three
## ── Attaching packages ─────────────────────────────────────── tidyverse 1.3.2 ── ## ✔ ggplot2 3.4.1 ✔ purrr 1.0.1 ## ✔ tibble 3.1.8 ✔ dplyr 1.1.0 ## ✔ tidyr 1.3.0 ✔ stringr 1.5.0 ## ✔ readr 2.1.4 ✔ forcats 1.0.0 ## ...
2526 sym Python (7663 sym/40 pcs) 19 img