Name Assignment QNT/561 Date Descriptive Statistics Sales (in USD) The distribution is normally distributed. Central Tendency: Mean = 42.84 dollars. Dispersion: Standard deviation = 9.073 dollars. Count: 100 Min/Max: Min is $23.00; Max is $64.00 Confidence Interval (alpha = 0.05): $41.06 to $44.62 The histogram is present in Appendix A; the descriptive statistics are present in Appendix B. Age The distribution is not normally distributed. Central Tendency: Median = 35 years Dispersion:
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N Solution: W = 50 000 N x 80 m/s W = 4 000 000 J/s Electricity 5. Charges of 6 and + 4 nC are 3 m apart. Determine the force they exert on each other‚ and the electric field at a point midway between them. Given: Formula: k = 9 x 109 Felec = k q1 q2 /r2 q1 = 6 x 109 C q2 = 4 x 109 C r = 3 m Felec = (9 x 109)(6 x 109)(4 x 109)/32 Felec = 24 x 109 N 6. A 50 cm piece of nichrome wire is used in a home heating element. The cross sectional area
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violates copyright‚ trademark‚ or other intellectual property laws. I further agree that my name typed on the line below is intended to have‚ and shall have‚ the same validity as my handwritten signature. Introduction to Statistics QNT 351 March 22‚ 2013 Merry Gallo Introduction to Statistics Statistics is defined in Statistics for Business and Economics‚ as the science of data. Involves collecting‚ classifying‚ organizing‚ analyzing‚ and interpreting numerical information
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GENERAL BIOCHEMISTRY Problem Set No. 1 Answered by: Andrea Rose A. Fajardo of BSFT 2-1N 1. Calculate the pH of a dilute solution that contains a molar ratio of potassium acetate to acetic acid (pKa=4.76) of: a. 2:1 pH = 4.76 + log[2]/[1] = 4.76 + 0.3010 = 5.06 b. 1:4 pH = 4.76 + log[1]/[4] = 4.76 + (-0.6021) = 4.16 c. 6:5 pH = 4.76 + log[6]/[5] = 4.76 + 0.0792
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1. EP Enterprises has the following income statement. How much net operating profit after taxes (NOPAT) does the firm have? Sales $1‚800.00 Costs 1‚400.00 Depreciation 250.00 EBIT $ 150.00 Interest expense 70.00 EBT $ 80.00 Taxes (40%) 32.00 Net income $ 48.00 a. $81.23 b. $85.50 c. $90.00 EBIT $150.00
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ECE 302 Problem Set 9 Fall 2013 The following problems have been selected from the course text. 4.78 In a large collection of wires‚ the length of a wire is X‚ an exponential random variable with mean 5π cm. Each wire is cut to make rings of diameter 1 cm. Find the probability mass function for the number of complete rings produced by each length of wire. 4.85 The exam grades in a certain class have a Gaussian pdf with mean m and standard deviation σ. Find the constants a and b so that
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Chapter 17‚ Problem B1 A. To remain comfortably within the ‘A’ range‚ the firm should avoid the lower of each scale. Fixed Charge Coverage = 3.40 – 4.30 (Scale 3.00 – 4.30) Total Debt = 55 – 65 (45 - 65) Long-Term Debt = 25 – 32 (22 – 32) B. Other factors to consider include net present value (NPV)‚ foreign tax credits‚ and the price of stock. C. Bixton must resolve the research and development‚ and foreign tax credits. The target ranges listed are suitable only for a debt shield. Lenders
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confidence level‚ z = 1.96 n = (zs/E)² = [(1.96)(0.5)/0.2]² = 24.01 24.01 boxes must the processor sample to be 95 percent confident that the same mean does not differ from the population mean by more than 0.2 pounds. Lind Chapter 10; Exercise 6 The MacBurger
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Sampling and Data Collection Plan Amy Nguyen QNT/561 November 3‚ 2014 Dr. Anthony Matias Sampling and Data Collection Plan Population and Size The population would be the customers of Starbucks. The size of the population is 300. Target Population The target population would be the senior‚ middle‚ and young customers of the organization as it would help to find out that how much coffee effect their life. The customers would have more knowledge about the effects of drinking too much coffee daily
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ECO 561 Week 6 Quiz ------------------------------------------------- ** Important ** … ECO 561 Week 6 “FREE” Quiz w/ answers I would greatly appreciate comments ..SO PLEASE COMMENT (add notes here) at this site or .. go to ROGUEPHOENIX.39 at Facebook ‚ and LET ME KNOW THAT THIS IS HELPING you . ------------------------------------------------- Good luck …. 1. If the demand curve is QD = 100 – 10P and there is a $1 price increase‚ then the elasticity of demand at P = 2 is Hint
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