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danielle lluch

danielle l.

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Ivanhoe Company has several processing departments. Costs to be accounted for in the Assembly Department for November 2025 totaled $2,282,148 as follows. Work in process, November 1 Materials $79,300 Conversion costs 48,600 $127,900 Direct materials added during November 1,590,380 Direct labor incurred during November 226,000 Manufacturing overhead assigned during November 337,868 $2,282,148 Production records show that 34,600 units were in beginning work in process 30% complete as to conversion costs, 661,100 units were started into production, and 25,300 units were in ending work in process 40% complete as to conversion costs. Materials are added at the beginning of each process, and conversion costs are incurred uniformly throughout the process. (a) Determine the equivalent units of production and the unit production costs for the Assembly Department. (Round unit costs to 2 decimal places, e.g. 2.25.)

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2. Assume that 1% of the one million people living in a city are currently infected with COVID 19,. Further assume that we test them with a test that is 99.9% accurate (99.9% sensitivity, 99.9% specificity). The contingency table below reflects the results. Respond to the questions below. Show your work. Infected Healthy Total Positive COVID 19 Test True Positive 9,990 False Positive 990 10,980 Negative COVID 19 Test False Negative 10 True Negative 989,010 989,020 Total 10,000 990,000 1,000,000 a. If someone tests positive, what is the probability they are infected? This is the positive predictive value (PPV) of the test. This may also be written as P(infected | positive test). Round to 2 decimal places. (1 pt) b. If someone tests positive, what is the probability they are healthy? This is the false discovery rate. This may also be written as P(healthy | positive test). Round to 2 decimal places. (1 pt) c. When we add together the PPV and the false discovery rate for any test, why is the sum always 100%? (1 pt)

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The weak law of large numbers states that if $X_1, \dots, X_n$ are i.i.d. with finite means and variances, then the sample average converges to the population mean in probability as $n \to \infty$. (a) How to ensure the i.i.d. property of the sample? Explain the procedure and the reason why the procedure can make the sample i.i.d. (b) Intuitively explain what \"convergence in probability\" means in this context.

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During an oxidation-reduction experiment, why is it important to observe the reaction after 30 minutes?The solution and solid look different after 30 minutes than when the reaction begins.The reaction requires time to complete.Silver continues to precipitate for 30 minutes.All of the above

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Dr. Polaski, a developmental theorist, notes that many health care concerns of midlife have their start in: O childhood or even before birth. O early adulthood. O family conversations. O interactions with significant others.

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Consider a 20.0g sample of mercury originally at 387°C is slowly cooled to 307°C. Use the information in Table 1 to answer the questions that follow. Table 1: Physical Properties of Mercury - Melting Point/Boiling Point: -39°C/357°C - DH_(fusion): 11.6 J/g - Specific Heat (gas): 1.104 J/g°C - Specific Heat (liquid): 0.138 J/g°C - Specific Heat (solid): 0.141 J/g°C - DH_(fusion): 292 J/g 1. What physical state is the mercury in at the original temperature? (3) 2. Calculate the total amount of heat exchanged in the process of changing the temperature of the sample from 387°C to 307°C.

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Let $X_1, X_2, \dots, X_n$ be a random sample from a population $X$ with a pdf given by \begin{equation*} f(x) = \begin{cases} k, & \text{if } a \le x \le b\\ 0, & \text{otherwise} \end{cases} \end{equation*} where $a$ and $b$ are two unknown real numbers satisfying $a < b$. i) Determine $k$ (in terms of $a$ and $b$); ii) Find the method of moments estimators (MME) for $a$ and $b$ respectively; iii) Given the observed sample 3, 2, 4, 3, 5, 6, 1, 4, find the moment estimates for $a$ and $b$ respectively.

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HW10.23. Remove all the non-string elements from a list Define a function below, filter_only_strs, which takes a single argument of type list. Complete the function so that it returns a list that contains only the strings from the original list and no other data. It is acceptable to return an empty list if there are no strings in the original list. This question uses the filter pattern discussed in lecture. removal.py 1 def filter_only_strs(lst): 2 for x in lst: 3 if isinstance(x, str)==False: 4 lst.remove(x) 5 return lst

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QUESTION 8 Two solid metal spheres are very far apart, so one does not affect the other. Sphere A has radius $a$, and sphere B has radius $b$, where $a < b$. Identical charge $Q$ is placed on each sphere. How do the potential ($V_A$) and stored energy ($W_A$) on sphere A compare to the potential ($V_B$) and stored energy ($W_B$) on sphere B? $V_A < V_B$, $W_A < W_B$ $V_A < V_B$, $W_A = W_B$ $V_A > V_B$, $W_A > W_B$ $V_A = V_B$, $W_A > W_B$ $V_A > V_B$, $W_A < W_B$ $V_A < V_B$, $W_A > W_B$ $V_A = V_B$, $W_A = W_B$ $V_A > V_B$, $W_A = W_B$ $V_A = V_B$, $W_A < W_B$

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The result to the Polish economy is that prices will determine... a. only the mix of output to be produced and the resources to be used in the production process. b. only the resources to be used in the production process and for whom the output is produced. c. the mix of output to be produced, the resources to be used in the production process, and for whom the output is produced. d. only for whom the output is produced and the mix of output to be produced.

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