Quantitative Methods for Business chapter 5 potx

... ‘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. 45 4.70 5. 09 4.82 6.23 5. 40 6.22 5. 26 (a) Compile a stem ... 5. 15 are in city centre locations. The seating capacities for these five restaurants are shown in bold type below: 53 38 59 62 51 51 28 45 61 39 59...

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... Rank (x) Number sold (y) Rank (y) dd 2 25 3 5 4 3 Ϫ 4 ϭϪ11 27 4 2 2 .5 4 Ϫ 2 .5 ϭ 1 .5 2. 25 28 5 2 2 .5 5 Ϫ 2 .5 ϭ 2 .5 6. 25 32 6 1 1 6 Ϫ 1 ϭ 52 5 ∑d 2 ϭ 68 .5 n ϭ 6 If you would like the line of best ... respectively. 230 Quantitative methods for business Chapter 7 Figure 7.2 Perfect positive correlation 654 3210 20 10 0 X Y 242 Quantitative methods for bu...

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... 2000. Σ Σ qp qp cc c * 100 (50 * 156 ) (600 * 35) ( 750 * 32) * 1 25 (600 * 25) ( 750 * 28) * 100 52 800 42 250 * 100 1 25. 0 to 1 decimal place 0 50 ϭ ϩϩ ϩϩ ϭϭ () 256 Quantitative methods for business Chapter 8 Time-based ... 6482 2 8000 0. 857 6 856 3 8000 0.794 6 352 4 7000 0.7 35 51 45 5 6000 0.681 4086 5 5000 0.681 34 05 Net present value ϭ 2326 electricians...

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... select for the sample. Example 15. 4 How can the HR director in Example 15. 3 use systematic sampling to select her sample of 400 employees? 468 Quantitative methods for business Chapter 15 no guarantee ... voted for Roosevelt. 478 Quantitative methods for business Chapter 15 15. 3.4 Convenience sampling This method is very simple: samples are chosen purely on the ba...

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... (DF), and the 58 2 Quantitative methods for business Chapter 17 C1 C2 Men Women 15 35 25 25 To test the hypotheses the sample results must be consolidated into a test statistic in the form of a measure ... 18 20 65 Total 57 30 48 1 35 Performance/Sports Super-minis Family cars Total 40 or over 30 (29 .56 ) 12 ( 15. 56) 28 (24.88) 70 Under 40 27 (27.44) 18 (14.44) 20 (23.12)...

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... 0.000000 45 (a) 4 .5 * 10 10 (ii) 45 (b) 4 .5 * 10 Ϫ7 (iii) 450 ,000 (c) 4 .5 * 10 1 (iv) √ 45 (d) 4 .5 * 10 Ϫ1 (v) 0.00 45 (e) 4 .5 * 10 0 (vi) 45, 000,000,000 (f) 4 .5 * 10 1/2 (vii) 4 .5 (g) 4 .5 * 10 Ϫ3 (viii) ... and PERT? 453 Review questions 454 Chapter 15 Taking short cuts – sampling methods 466 15. 1 Bias in sampling 467 15. 2 Probabilistic sampling methods 470...

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... equal is 50 ,000: 450 0000/90 ϭ 50 000 The total cost and total revenue when 50 000 units are produced will be: TC ϭ 450 0000 ϩ 60 * 50 000 ϭ 450 0000 ϩ 3000000 ϭ £7 ,50 0,000 TR ϭ 150 * 50 000 ϭ £7 ,50 0,000 TC ... profit of £ 15, 000. On average each will house 2 people owning 1.2 cars. The 4-bedroom houses will 76 Quantitative methods for business Chapter 2 66 Quantitative...

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... 3000 5 25 * 5 600 1 25 £7 25 ϩ ϭϩϭ Total annual stock cost 2 12 .5 * 240 50 2 3000 25 ϩϭ ϩ ϭ ϩ CY Q SQ Q Q Q Q Total annual order cost 12 .50 * 200 250 0 ϭϭ ϭ CY QQ Q 0 100 200 300 400 50 0 600 0 5 ... stock costs when Q is 10 will be: Q 2CY S 2 * 12 .50 * 200 50 00 50 10 10ϭϭ ϭ ϭϭ 50 Total annual stock cost 2 12 .50 * 200 50 * 10 2 250 250 50 0ϭ ϩ ϭ ϩ ϭϩϭ CY Q SQ 10...

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... 4 .52 5. 11 5. 94 5. 82 7.14 7.28 8. 15 7.04 4.41 4.67 6.90 5. 85 5. 65 5 .50 4.12 5. 27 5. 25 6.43 5. 73 4. 65 5.37 4.24 6. 45 4.70 5. 09 4.82 6.23 5. 40 6.48 5. 26 Construct a grouped frequency distribution for ... continuous 114 Quantitative methods for business Chapter 4 132 Quantitative methods for business Chapter 4 25 13 0 13 20 18 13 16 15 0 15...

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... (f ) fx 5 and under 10 7 .5 1 7 .5 10 and under 15 12 .5 5 62 .5 15 and under 20 17 .5 10 1 75. 0 20 and under 25 22 .5 6 1 35. 0 25 and under 30 27 .5 1 27 .5 ∑f ϭ 23 ∑fx ϭ 407 .5 At this point you may find ... under 35 0 4 35 and under 40 7 9 40 and under 45 13 17 45 and under 50 22 15 50 and under 55 10 3 55 and under 60 4 0 60 and under 65 1 0 (a) Find approxima...

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