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ane was a partner at a law firm earning $223,000 per year. She left the firm to open her own law practice. In the first year of business she generated revenues of $347,000 and incurred explicit costs of $163,000. Jane's economic profit from her first year in her own practice is a. $124,000. b. $184,000. c. −$39,000. d. $163,000.

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A researcher wishes to estimate within 2 percentage of the average systolic blood pressure of female college students. If she wishes to be 99% confident, how large a sample should she select if the population standard deviation of female systolic blood pressure is 4.8? (7 POINTS)

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In the Tuskegee Syphilis Study, there were issues with... Group of answer choices Research Ethics The right to Autonomy Informed consent All of the Above

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Solutions to P2 (i) Under the ground truth model, we have $\sum_{j=1}^{n_i} E(Y_{ij} - \mu_i)^2 = \sigma^2(n_i - 1)$, for all $i = 1, \dots, m$. lease as a practice to show this identity: Therefore, $E\hat{\sigma^2}_{usual} = \frac{\sum_{i=1}^{m} \sigma^2(n_i - 1)}{\sum_{i} (n_i - 1)} = \sigma^2$. The estimated $\sigma^2$ based on the reduced model is $\hat{\sigma^2}_{red} = \frac{\sum_{ij} (Y_{ij} - \bar{Y}_i)^2}{\sum_{i} n_i - 1}$. Both $\hat{\sigma^2}_{red}$ and $\hat{\sigma^2}_{usual}$ are unbiased, but $\hat{\sigma^2}_{red}$ has smaller variance than $\hat{\sigma^2}_{usual}$. Therefore, the CI based on reduced model is has smaller expected length.

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Assume there is no government or foreign sector. If the multiplier is 2, a $20 billion increase in planned investment will cause aggregate output to increase by Group of answer choices $5 billion. $10 billion. $20 billion. $40 billion.

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Answer: B. A deterioration in the current account balance as exports decline due to reduced global demand.

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Text: What are the differences between a DBMS and RDBMS? Explain the terms database and DBMS.

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Construct a truth table for the following compound statement. $-(p \lor \neg q)$ You need to work this problem on a paper. Enter the truth values of the final column in the following blanks as T or F in the same order as the table. P q $-(p \lor \neg q)$ T T T F F T F F

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Study the problem and proposed solution below. Is the final answer correct? Then click the Mo mistakes button. Is the final answer wrong? Then click the button in front of the line with the first mistake and correct the mistake. Note: don't worry about correcting the rest of the solution, after the first mistake. The density of a pure substance is its mass per unit volume. The density of cresol has been measured to be $1024 \frac{g}{L}$. Calculate the mass of 205. mL of cresol. Be sure your answer has a unit symbol and the correct number of significant digits. Solution: Write down the definition of density. Solve for mass. m= (1.024)(205) g Put in the data given. Now fix m=209.92.g this m=209.92 g Round to the correct number of significant digits.

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B. The No-Load Test 1. Connect the induction motor in a Y-connection by connecting W2 to U2 to V2. 2. Construct the set-up shown in Figure 3. Do not turn-on the power supply before you call your instructor to check your connection. Figure 3: The equipment connection of the no-load test. 3. Turn-on the protection switch, adjust the three-phase voltage source into the rated phase voltage of the induction motor (400V), and record the values in Table 2. Table 2. No-load test measurements Phase Voltage (V) Phase Current (A) Active Power (W) Reactive Power (Var) Power Factor 421 V 0.184 11.1 W 43.8 var 0.25 4. Calculate the following to determine the core losses resistance ($R_c$) and magnetizing reactance ($X_M$): $I_c = I_{ph} \cos \varphi = $ $I_M = I_{ph} \sin \varphi = $ $R_c = \frac{V_{ph}}{I_c} = $ $X_M = \frac{V_{ph}}{I_M} = $

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natalie e.