During a physical exam, you shine a light into the right eye…
During a physical exam, you shine a light into the right eye. You observe that neither the right nor the left pupil constricts. However, when you shine the light into the left eye, both pupils constrict normally. This finding is most consistent with a lesion of the:
Read DetailsRiley operates a plumbing business, and this year the three-…
Riley operates a plumbing business, and this year the three-year-old van he used in the business was destroyed in a traffic accident. The van was originally purchased for $20,000, and the adjusted basis was $5,800 at the time of the accident. Although the van was worth $6,000 at the time of accident, insurance only paid Riley $1,200 for the loss. What is the amount of Riley’s casualty loss deduction?
Read DetailsSmith operates a roof repair business. This year, Smith’s bu…
Smith operates a roof repair business. This year, Smith’s business generated cash receipts of $32,565, and Smith made the following expenditures associated with his business: Advertising $ 530 Car and truck expenses 1,336 Depreciation 3,220 Employee compensation 5,150 Education 1,600 The education expense was for a two-week, nighttime course in business management. Smith believes the expenditure should qualify as an ordinary and necessary business expense. What net income should Smith report from his business? Smith is on the cash method and calendar year.
Read DetailsWerner is the president and CEO of Acme, Incorporated, and t…
Werner is the president and CEO of Acme, Incorporated, and this year, he took a prospective client to dinner. During the dinner, Werner and the client discussed a proposed contract for over $6 million as well as personal matters. After dinner, Werner took the client to a football game and no business was discussed. Werner paid $1,220 for an expensive (but not extravagant) dinner at a restaurant and then spent $600 for tickets to the game. What is the deductible amount of these expenses?
Read DetailsSuppose that a given dose-response experiment the dose of po…
Suppose that a given dose-response experiment the dose of poison X and proportion m of insects out of M that are killed at each dose are given. A logistic regression model was used to model probability of killing insects [P(Y=1)]. Fitted logistic model is given by l o g i t ( P ( Y = 1 ) ) = β 0 + β 1 X . {“version”:”1.1″,”math”:”logit(P(Y=1))=\beta_0+\beta_1 X.”} Compute the effective dose needed to kill 60% of the insect population.
Read DetailsA researcher is interested in how variables, such as GRE (Gr…
A researcher is interested in how variables, such as GRE (Graduate Record Exam scores) and GPA (grade point average), affect admission into graduate school. The response variable, admit/don’t admit, is a binary variable. The data set has a binary response variable called admit. There are two predictor variables: GRE and GPA. A student used R to fit a logistic model. Use the partial R output to answer the following questions. mylogit Write the logistic regression model. Test the global null hypothesis. Make sure to write the null and alternative hypotheses, and compute the test statistic. Write down the distribution of the test statistic. Is GRE a significant variable in this model? Test the hypothesis test. Make sure to write the null and alternate hypotheses, compute the test statistic, and the p-value. Interpret the coefficients of the model using the odds ratio. Use your model to compute the predicted probability of getting admission for a student with a GRE score of 580 and a GPA of 3.59.
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