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[CHAPTER 1 – Introduction to Environmental, Science, and Information Literacy] In the Planetary Boundaries framework, where do the “tipping points” occur?

[CHAPTER 4 – Human Populations and Environmental Health] A chemical that causes birth defects by disrupting embryonic development is _____

[CHAPTER 2 – Ecology] Which of the following is an example of a niche specialist in the Everglades?

[CHAPTER 2 – Ecology] Which biome has the widest range of temperature?

[CHAPTER 1 – Introduction to Environmental, Science, and Information Literacy] What change did the Greenland settlers make that likely contributed to their demise?

Instructions Save the .ipnyb file in your working directory – the same directory where you will download the data files into. Read the question and create the code necessary within the code chunk section immediately below each question. Type your answer to the questions in the text block provided immediately after the response prompt. Once you’ve finished answering all questions, save this file and submit the file as HTML on Canvas. Make sure to start submission of the exam at least 10 minutes before the end of the exam time. It is your responsibility to keep track of your time and submit before the time limit. If you are unable to save your file as HTML for whatever reason, you may upload your ipynb/PDF/Word file instead. However, you will be penalized 15%. If you are unable to upload your exam file for whatever reason, you may IMMEDIATELY attach the file to the exam page as a comment via Grades-> Midterm Exam 1 – Open Book Section – Part 2 -> Comment box. Note that you will be penalized 15% (or more) if the submission is made within 5 minutes after the exam time has expired and a higher penalty if more than 5 minutes. Furthermore, you will receive zero points if the submission is made after 15 minutes of the exam time expiring. We will not allow later submissions or re-taking of the exam. If you upload your file after the exam closes, let the instructors know via a private Piazza post. Please DON’T attach the exam file via a private Piazza post to the instructors since you could compromise the exam process. Any submission received via Piazza will not be considered. *The submitted file must be HTML Background The dataset includes variables related to supply chain analysis. We will be fitting multiple linear regression models to the train dataset and making predictions on the test dataset. In this dataset, the response variable is “Replenishment_Cost”. –   **Product_Type**: The category of the product (e.g., Food, Automobile, Clothing). –   **Manufacture_Cost**: The cost of manufacturing the product (in dollars). –   **Demand_Forecast**: The predicted demand for the product in the market. –   **Lead_Time**: The time (in days) required to deliver the product after the order is placed. –   **Warehouse_Stock**: The quantity of the product currently available in the warehouse. –   **Order_Quantity**: The number of units ordered for replenishment. –   **Shipping_Cost**: The cost associated with shipping the order (in dollars). –   **Supplier_Rating**: A numerical score (e.g., 1–5) representing the reliability or quality of the supplier. –   **Seasonality**: A binary indicator (0 or 1) denoting whether the product is influenced by seasonal factors. –   **Supplier_Distance**: The distance (in miles or kilometers) between the supplier and the warehouse. –   **Region**: The geographical location of the supplier (e.g., North, South, East, West). –   **Priority_Level**: The urgency of replenishment for the product (e.g., High, Medium, Low). –   **Replenishment_Cost** (response variable): The total cost of replenishing the product, including manufacturing, shipping,  and other costs (in dollars).

What is the most effective way to break the ‘chain of infection’?

Q1. Data Exploration (10 points) Use the dataset “supply_chain” for this question a. (2 points) Is the response variable Replenishment_Cost normally distributed or skewed? b. (2 points)  Which product type has the highest average Replenishment_Cost? c. (2 points) Calculate the correlation coefficient and plot a scatterplot between Order_Quantity and Lead_Time. Do products with higher Order_Quantity tend to have lower Lead_Time? d. i) (2 points) How does the distribution of Replenishment_Cost vary across different Regions, and are there any outliers identifiable in each region? ii)(2 points) Test whether the mean Replenishment_Cost significantly differs across the four Region categories?

Midterm Exam 1 – Open Book Section (R) – Part 2 Instructions Answer the questions below by completing the Jupyter Notebook file. You may make slight adjustments to get the file to convert but otherwise keep the formatting the same. Once you’ve finished answering the questions, submit your responses in a single file as HTML only.   Next Steps: Save the .ipynb file in your working directory – the same directory where you will download the .csv into. Save the file as you work on the exam questions so you do not encounter issues at the end of the exam.  Once you’ve finished answering all questions, save this file and submit your final file as HTML on Canvas. Submitting any other file type will result in a penalty applied to your exam grade.   Data Set supply_chain_data.csv Starter TemplatesYou may use either Jupyter Notebook Starter Template: Jupyter Notebook Starter Template in R:  Spring2025_Midterm1_starter_template.ipynb Jupyter Notebook Starter Template in Python:  Fall2024_midterm_python_starter_template.ipynb (WILL BE UPDATED BY WARDA)

What is a required step when two nursing assistants are moving a resident up in bed?