A sample of adults were randomly selected for a study on the relationship between annual income and having a credit card. Let the predictor be the annual income and the response be proportion of people having at least on card for the given level of income.  a. Which assumption of the linear regression model is most obviously assessed by the plot above? b. Is the assumption satisfied?  Y (for Yes), N (for No) or Can’t determine

Four different regression models have been fitted to the same data set. Which of the following models is the “best” model? The model significance p-value and AIC information criterion are provided below. 

A sample of adults were randomly selected for a study on the relationship between annual income and having a credit card. Let the predictor be the annual income and the response be proportion of people having at least on card for the given level of income.  a. Which assumption of the linear regression model is most obviously assessed by the plot above? b. Is the assumption satisfied? Choose Y (for yes), N (for No), Can’t determine

A principal component analysis (PCA) was performed on a data set. Based on the scree plot shown, how many principal components should be retained to capture at least 80% of the total variance?

The following R code builds a model to predict the probability of being diabetes-positive based on the plasma glucose concentration: model |z|) ## (Intercept)  -6.3267     0.7241   -8.74 2.39e-18 ## glucose       0.0437     0.0054    8.09 6.01e-16 The output above shows the estimate of the regression beta coefficients and their significance levels. The coefficient estimate of the variable glucose is b = 0.044, which is positive. Explain in detail what it means (interpretation) using the words such as odds and odds ratio.

List three common clustering methods used in statistical or data analysis. All 3 should be listed (one in each row). 1)   3)  3)  

Choose one of the essay topics below and create a multi-paragraph essay complete with an introduction, body paragraphs and a conclusion. Authors read in this unit: Truth, Emerson, Hawthorne, Poe, and Douglass.  1. Choose any three works and discuss how these works illustrate the struggle between individual moral judgment and external societal forces. Discuss how this conflict affects the characters’ identities, actions, or psychological states, and how these tensions reflect broader American themes of self-reliance, morality, and resistance. 2. Choose any three works and discuss how the authors present a theme of moral or intellectual awakening and how this process challenges societal norms, personal identity, and American ideals. Consider how these awakenings differ between individuals seeking freedom (Douglass, Truth), philosophers seeking truth (Emerson), and fictional characters confronting inner evil or societal hypocrisy (Hawthorne, Poe).

Using the cell diagram below, match the cell part to the number. Peroxisome: [1] Nucleolus: [2] Rough Endoplasmic Reticulum: [3] Lysosomes: [4] Centrosome: [5] Nucleus: [6] Smooth Endoplasmic Reticulum: [7] Mitochondria: [8] Cell Membrane: [9] Cytoplasm: [10] Golgi Apparatus: [11]

The nurse is teaching a group of older adult clients with chronic heart disease about health promotion. Which statement indicates a need for further teaching?

Using the cell diagram below, match the cell part to the number. Pili: [1] Capsule: [2] Plasma Membrane: [3] Ribosomes: [4] Cell Wall: [5] Flagella: [6] Nucleoid: [7]