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michael blanca

michael b.

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After getting trounced by your little brother in a children's game, you suspect the die he gave you to roll may be unfair. To check, you roll it 9696 times, recording the number of times each face appears. Do these results cast doubt on the die's fairness? Complete parts a through g below. Face Count Face Count 1 1818 4 99 2 1414 5 2424 3 1313 6 1818 Question content area bottom Part 1 a) If the die is fair, how many times would you expect each face to show? 1616 Part 2 b) To see if these results are unusual, will you test goodness-of-fit, homogeneity, or independence?

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Biomonitor of Atmospheric Nitrogen and Sulphur Deposition in Norway" (Environ. Monit. Assess. 1993: 27-47) gives the fol- lowing data (read from a graph) on x = NO3 wet deposition (gN/m²) and y = lichen N (% dry weight): x .05 .10 .11 .12 .31 .37 .42 y .48 .55 .48 .50 .58 .52 1.02 X .58 .68 .68 .73 .85 .92 y .86 .86 1.00 .88 1.04 1.70 The author used simple linear regression to analyze the data. Use the accompanying Minitab output to answer the following questions: a. What are the least squares estimates of $$β_0$$ and $$β_1$$? b. Predict lichen N for an NO3 deposition value of .5. c. What is the estimate of σ? d. What is the value of total variation, and how much of it can be explained by the model relationship? The regression equation is lichen N = 0.365 +0.967 No3depo Predictor Constant Coef 0.36510 Stdev t ratio P 0.09904 3.69 0.004 0.1829 5.29 0.000 No3depo 0.9668 S=0.1932 R-sq71.7% R-sq (adj) = 69.2% Analysis of Variance Source DF SS MS F P Regression 1 1.0427 0.4106 27.94 0.000 Error 11 0.4106 0.0373 Total 11 1.4533

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P.7-23 The electric field of an electromagnetic wave $$E = a_x E_0 \cos \left[ 10^8 \pi \left( t - \frac{z}{c} \right) + \theta \right]$$ is the sum of $$E_1 = a_x 0.03 \sin 10^8 \pi \left( t - \frac{z}{c} \right)$$ and $$E_2 = a_x 0.04 \cos \left[ 10^8 \pi \left( t - \frac{z}{c} \right) - \frac{\pi}{3} \right]$$ Find $$E_0$$ and $$\theta$$

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u(𝑡) = sin(10𝑡) +sin(103𝑡) +sin(106𝑡) a. Design a filter 𝐺1(𝑠) that attenuates the frequency components at 103 and 106 rad/s and retains the magnitude of the component at 10 rad/s. b. Design a filter 𝐺2(𝑠) that attenuates the frequency components at 10 and 106 rad/s and retains the magnitude of the component at 103 rad/s. c. Design a filter 𝐺3(𝑠) that attenuates the frequency components at 10 and 103 rad/s and retains the magnitude of the component at 106 rad/s.

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Which of the following is a homogeneous mixture? Group of answer choices sugar none of these noodle soup carbon water

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A store pays $80.50 for a microscope and marks the price up by 50%. What is the new price?

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What are the advantages of a closed-loop system? (select all that apply) A. System is self-regulating B. Self correcting C. less sensitive to disturbances D. less initial cost to create

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Other things the same, a decrease in the price level causes the interest rate to increase and the USD to depreciate . As a result, we can expect exports to [ Select ] , and imports to [ Select ] . This would be represented with a [ Select ] the aggregate demand.

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1. In the Electrochemical Series how are the various half-reactions represented? Choose one answer from the list given below and simply put A, B, C or D on your answer sheet. [A] As forward reactions only, describing reduction, left to right [B] As equilibria, describing oxidation left to right [C] As forward reactions only, describing oxidation, left to right [D] As equilibria, describing reduction, left to right

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Problem ba) Your goal in this function is to input three quantities: \begin{itemize} \item m (a positive whole number) \item cell_num (a positive whole number) \item the coordinate of the player as two separate values x_player and y_player \end{itemize} The function should output the row number and the column number as a tuple, (row, col) I suggest working with some test values. For example, start off assuming the game window is 600 x 600. Assume we wish to have 10 cells in each row with a total of 10 rows (remember, we are in a square system). Make up a coordinate within this window, identify intuitively what cell it should be in, and only then begin formalizing your computations in terms of the variables provided. You may (or not) find it helpful to create additional variables throughout your coding process to keep track of details. If you plan accordingly, this can be done in about 2-3 lines of code. In [1]: def get_cell(m, cell_num, x_player, y_player): import random random.seed(18) m = random.randint(300,500) cell_num = random.randint(15,20) x_player = random.random()*m y_player = random.random()*m get_cell(m, cell_num, x_player, y_player) return (row, col)

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