DS 533 Fall 2003 Exam # 1 Name: ___________________ Show All your Work 1. You are the quality control manager in a plant that produces bungee cords. Your responsibility is to oversee the production of the synthetic material in the cord. Specifically, your responsibility is to ensure that bungee cords have the correct elastic qualities to avoid personal injury lawsuits. Your efforts are compounded in that you use two procedures for testing bungee cord elasticity, procedure
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IMPROVING E-MAIL MARKETING RESPONSE 5 0 0 1 68 1 1 0 25 0 1 0 22 1 0 0 21 0 0 0 19 1 1 1 38 0 1 1 38 1 0 1 59 0 0 1 80 1 1 0 27 0 1 0 32 1 0 0 23 0 0 0 33 3. Recommend the main actions that the company could take in order to increase the response rate of its email advertising. Provide a rationale for your response. The regression analysis data shows that the body has the highest impact. Text the response rate is so much more 27 times more. Open email has a reduced rate. Email
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Fg = Gm1 m2 /r2 , G = 6.67 × 10−11 Nm2 /kg2 2 U = −Gm1 m2 /r, g = GmE /RE √ T = 2πa3/2 / Gm ω = k/m = 2πf = 2π/T x = A cos(ωt + φ) 2 A = x2 + v0 /ω 2 ), φ = arctan(−v0 /(x0 ω)) 0 ω = g/L = mgd/I x = Ae−(b/2m)t cos ω t, ω = k/m − b2 /4m2 2 2 A = Fmax / (k − mωd )2 + b2 ωd y(x, t) = A cos[ω(x/v − t)] = A cos(kx − ωt) λ = 2π/k, v√ ω/k = λf = F/µ = 2 2 Pav = (1/2) µF ω 2 A2 , I1 /I2 = r2 /r1 y(x, t) = ASW sin kx sin ωt fn = nv/(2L) p = mv J = Fdt = ∆p F = dp/dt Fext = dP/dt = M aCM p1i + p2i = p1f +
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STATISTICAL TABLES UNDERGRADUATE DEGREES in MANAGEMENT and ECONOMICS Binomial Distribution – probability function 1 Binomial Distribution – f(x) f (x; n, p) = f (x) n x 1 0 1 1 2 0 2 1 2 2 3 0 3 1 3 2 3 3 4 0 4 1 4 2 4 3 4 4 5 0 5 1 5 2 5 3 5 4 n x px qn−x p 0.05 0.9500 0.0500 0.9025 0.0950 0.0025 0.8574 0.1354 0.0071 0.0001 0.8145 0.1715 0.0135 0.0005 0.0000 0.7738 0.2036 0.0214 0.0011 0.0000 0.1 0.9000 0.1000 0.8100 0.1800
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people participate to select those who will pass laws, formulate policies and govern. Patronage politics and "guns, goons and gold" thwart the people's There is no substantial people's participation in decision-making and governance. The unequal distribution of wealth, unequal participation in decision-making and political power does not contribute to a stable peace and order situation. Communist rebels, Muslim groups, Christian vigilante groups and the Armed Forces of the Philippines still continue
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frequently. Median = middle score when scores are ranked in order. Mean = the average score, the media. Interpreting the standard deviation: -the empirical rule (frequency distribution is bell shaped and symmetric) 68% values: -1 - +1 95% values: -1 - +1 99.7 % values: -3 - +3 -Chebyshev’s rule (applies to all distributions, regardless their shape) ?% values: -1 - +1 75% values: -2 - +2 88.9% values: -3 - +3 o Choice of numerical measures depends on the measurement level
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a) How many classes should be recommend? b) What class interval should be suggest? c) What lower limit should be recommend for the first class. d) A frequency distribution e) A relative frequency distribution and a cumulative frequency distribution f) A histogram g) A frequency polygon h) Comment on the shape of the frequency distribution Q2 The following chart shows the hourly wages of a sample of operators in a factory. a) b) c) d) e) f) How many operators were studied? What is the class
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technological advancement was a move away from the financial problems caused by the use of post-paid electricity. Post-paid electricity was costly, as it was based on meters that recorded consumption (McDonald, 2012). The reading of these meters, distribution of bills, dealing with arrears and disconnecting consumers who failed to pay proved to be very difficult. Residents in Thembisa first responded by destroying prepaid meters, while the Thembisa council responded by protecting the prepaid meter infrastructure
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SECURITY ORIENTED COMPUTING This refers to components of organizational security programs that ate put in place to ensure the safeguarding of an organization’s framework. They play quite a significant role in preventing cybercrime or manipulation of an organizations data. They are not necessarily focused on Information technology but rather are concepts that have been put to the test and proved to be viable. One of this concepts is security oriented computing. It can be best described as a strategy
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3 a) > model=lm(taste~Acetic+H2S+Lactic, data=cheddar) > summary(model) lm(formula = taste ~ Acetic + H2S + Lactic, data = cheddar) Residuals: Min 1Q Median 3Q Max -17.390 -6.612 -1.009 4.908 25.449 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) -28.8768 19.7354 -1.463 0.15540 Acetic 0.3277 4.4598 0.073 0.94198 H2S 3.9118 1.2484 3.133 0.00425 ** Lactic 19.6705 8.6291
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