Chapter4Q03answer1[1] - = p (competitor will advertise) + p...

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Chapter 4 Question 3 Level of sales (no. of weeks) Low Medium High Total Competitor advertised 32 14 18 64 Competitor did not advertise 21 12 23 56 Total 53 26 41 120 (a) p (the competitor will advertise) = 64/120 = 0.53 (b) p (sales will not be high) = 1 – p (sales will be high) = 1 – 41/120 = 79/120 = 0.66 (c) p (medium or high sales will be achieved) = p (medium sales) + p (high sales) = 26/120 + 41/120 = 67/120 = 0.56 (d) p (either the competitor will advertise or only low sales will be achieved)
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Unformatted text preview: = p (competitor will advertise) + p (only low sales achieved) – p (competitor will advertise and only low sales will be achieved) = 64/120 + 53/120 –32/120 = 85/120 = 0.71 (e) p (either the competitor will not advertise or high sales will be achieved) = p (competitor will not advertise) + p (high sales achieved) – p (competitor will not advertise and high sales achieved) = 56/120 + 41/120 – 23/120 = 74/120 = 0.62...
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This note was uploaded on 03/29/2010 for the course DMVS 324 taught by Professor Muller during the Spring '10 term at Stellenbosch University-South Africa.

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