Question 2. Multiple Linear Regression  (Use trainData for this question) (20 points) PDF ONLY Question 2 ONLY Submit to BOTH Canvas and Gradescope Question 2 Gradescope Submission Link Expire after 10 minutes once opened Upload PDF here in Canvas. Starter templates: . Summer2025_midterm_Question no. 2_R-2.ipynb . Summer2025_midterm_Question no. 2_Python-2.ipynb a) (9 points)(2 points) i) Using trainData, perform a multiple linear regression to predict the sleep_hours using the predicting variables  caffeine_intake and evening_habits.Call it model1. Display the summary.  (4 points) ii) Interpret the coefficient of  evening_habitsReading and caffeine_intake in the contextof the problem. State any assumptions while interpreting the coefficents. Note: Interpret the coefficient irrespective of its statistical significance. (3 points) iii) Suppose you had to build a simpler model with only one evening habit. Which would you choose and why? (Use both coefficient and standard error logic.) (2 points) b) Create a full linear regression model using all the predictors in the dataset “trainData” .Call it model2. Display the summary. (3 points) c) Compare the R-squared and Adjusted R-squared values of the reduced and full models (model1 and model2). What do you observe? Explain the theoretical differences between R-squared and Adjusted R-squared. What does each measure? (6 points) d) Perform all the model diagnostics on model2 (the full model). Explain your findings based on the diagnostic plots.  

Match the key feature or finding with the correct odontogenic cyst type.

The odontogenic cyst primarily associated with ectopic tooth development is the [BLANK-1] and is the most prevalent type.

The presence of [BLANK-1] may lead to differentiated odontogenic indications.

The presence of which cyst is most likely to be accompanied by tooth displacement?

Repurchasing shares of a company’s own common stock increases

Clothing Emporium was organized on January 1, 2024. The firm was authorized to issue 100,000 shares of $5 par value common stock. During 2024, Clothing Emporium had the following transactions relating to stockholders’ equity:Issued 30,000 shares of common stock at $7 per share.Issued 20,000 shares of common stock at $8 per share.Reported a net income of $100,000.Paid dividends of $50,000.What is the ending balance in the Retained Earnings account at the end of 2024?

On January 1, 2024, Costco, Inc. purchases an office building for $228,000, paying $48,000 down and borrowing the remaining $180,000. They signed an 8%, 10-year mortgage with installment payments of $2,183.90 that are due at the end of each month with the first payment due on January 31, 2024. The first month’s interest expense will be _____ and the carrying value of the mortgage after the first interest payment will be _____.

Which of the following bonds always matures on a single date?

On June 1, 2025, Norwegian Cruise Lines borrowed $600,000 using an eight-month, 5% note. Interest is payable at maturity. What is the amount of interest expense that the company would record in a year-end adjustment on December 31, 2025?