Quantitative Methods for Business chapter 2 doc

... ϩ 20 0 ϭ 400 y Ϫ y ϭ 0y no y Ϫ0.1x Ϫ (Ϫ0.2x) ϭϩ0.1x 20 0 Ϫ 0 ϭ 20 0 yx yx 0.1 20 0 0 .2 0 0.1 20 0 Ϫϭ Ϫϭ ϩϭx 72 Quantitative methods for business Chapter 2 2.7 Road test: Do they really use linear ... average each will house 2 people owning 1 .2 cars. The 4-bedroom houses will 76 Quantitative methods for business Chapter 2 66 Quantitative methods fo...

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... trainee post are: 21 23 21 21 23 21 24 22 21 24 21 26 23 22 21 22 23 21 22 21 22 25 21 22 21 22 21 24 Produce a frequency distribution for these figures. 4. 12 The number of business trips abroad ... continuous 114 Quantitative methods for business Chapter 4 1 32 Quantitative methods for business Chapter 4 25 13 0 13 20 18 13 16 15 0 15...

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... then ␣ is 1% and ␣ /2 is 1 2% or 0.005. To produce your estimate use z 0.005 , 2. 576, the z value xz n (* )Ϯ ␣ ␴ 2 √ 518 Quantitative methods for business Chapter 16 16.3 .2 Hypothesis testing ... errors from the mean Ϫ3Ϫ4 20 123 4Ϫ1 0.0 0.1 0 .2 0.3 0.4 P(X ϭ x ) Figure 16 .2 The middle 95% of the area of a sampling distribution 500 Quantitative methods for business...

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... EXCEL, MINITAB and SPSS 23 Review questions 26 Chapter 2 Getting linear models straight 32 2.1 Linear equations 33 2. 2 Simultaneous equations 41 2. 3 Break-even analysis 46 2. 4 Inequalities 50 2. 5 Linear programming ... places.) Chapter 1 Setting off 31 Quantitative Methods for Business Contents Preface xi Acknowledgements xiii Chapter 1 Setting off 1 1.1 Quantitat...

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... ϭ 2x 2 Ϫ 28 0x ϩ 16000 d d 9 2 y x xϭ d d 16 9 32 y x xxϭϩ y x x 2 3 5 2 ϭϩ d d 2 3 10 2 y x x xϭ Ϫ ϩ y x x 5 2 ϭϪ d d 6 2 y x xϭ d d 3 y x ϭ d d 10 1 3 y x x ϭ Ϫ Ϫ y x 4 ϭ 2 dy dx 2x ... ϭ x 2 88 Quantitative methods for business Chapter 3 82 Quantitative methods for business Chapter 3 Example 3.1 A train operating company sets ticket pric...

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... distribution. 1 72 Quantitative methods for business Chapter 5 1 62 Quantitative methods for business Chapter 5 Produce a time series plot to show these data. 1313 0 5000 10,000 Quarter Energy cost (£) 24 24 Figure ... ‘temp’ agency are: 6 .26 4.90 4. 52 5.11 5.94 5. 82 7.14 7 .28 5.15 7.04 4.47 4.67 6.90 5.85 5.65 5.50 4. 12 5 .27 5 .25 6.43 5.65 4.65 5.37 4 .24 6...

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... current course of treatment: 23 223 122 1 322 2 24 322 222 11011 (a) Identify the mode, find the median, and calculate the mean of these figures. (b) Compare the results you obtained for (a). What do they tell ... compare it to the mean. There are 23 observations so the median is the (23 ϩ 1) /2 ϭ 12th observation. Array 9 121 3141414151515161717 17 17 19 19 20 20 21 21 22 24 27...

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... sold (y) y _ (y Ϫ y _ )(x Ϫ x _ )(y Ϫ y _ ) 18 25 Ϫ7844 28 20 25 Ϫ56 42 Ϫ10 25 25 0 5 4 1 0 27 25 2 2 4 2 Ϫ4 28 25 3 2 4 2 Ϫ6 32 25 7 1 4 Ϫ3 21 ∑(x Ϫ x _ )(y Ϫ y _ ) ϭϪ69 all the points matter, ... Ϫ749 84416 20 25 Ϫ 525 6 424 25 25 0 0 5 4 1 1 27 25 2 4 2 4 24 28 25 3 9 2 4 24 32 25 7 49 1 4 Ϫ39 136 38 (a) Identify the independent variable (X). (b) Present...

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... of these materials in 20 01, 20 02 and 20 03 were: 20 01 20 02 2003 Lining 2. 20 2. 30 2. 35 Interfacing £0. 92 £0.95 £1.00 Outer £6.50 £7 .25 £7.95 In 20 01 the company purchased 25 00 metres of lining ... to 20 03 were: Year 1998 1999 20 00 20 01 20 02 2003 Turnover (£m) 7 022 7101 7350 7844 824 9 8598 The values of the Retail Price Index (RPI) for this period were: Year 19...

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... 14 .2 1 Spring 31.8 1 Summer 33.0 21 .600 1. 528 1 Autumn 6.8 22 . 125 0.307 2 Winter 15.4 22 .900 0.6 72 2 Spring 34.8 23 .375 1.489 2 Summer 36 .2 23.375 1.549 2 Autumn 7.4 23 . 725 0.3 12 3 Winter 14.8 24 .800 ... Winter 14 .2 1 Spring 31.8 1 Summer 33.0 21 .600 11.400 1 Autumn 6.8 22 . 125 Ϫ15. 325 2 Winter 15.4 22 .900 Ϫ7.500 2 Spring 34.8 23 .375 11. 425 2 Su...

Ngày tải lên: 06/07/2014, 00:20