



Tools  Math 'Reasoning from Evidence' Testing a New Deodorant, Example #1
Testing a New Deodorant, Example #1 (solution)  Emergency 911!, Example #2 (solution) Ordering a Cab, Example #3 (solution)  Traffic Accidents, Example #4 (solution)
Malcolm Swan
Jim Ridgway
A scientist is testing a new deodorant before it goes into production. She has created two possible fragrances, A and B, and two possible names, 'Bouquet' and 'Hunter'. She conducts an experiment to see which combination of fragrance and packaging people prefer. 40 people are asked to smell a small amount of the deodorants, sprayed from 4 cans.
They are not told that 'Bouquet A' and 'Hunter A' both contain exactly the same fragrance, A, or that 'Bouquet B' and 'Hunter B' both contain the same fragrance, B. Each person is asked to fill in a sheet, ticking a box to show how he or she feels about each of the four deodorants.
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Ordering a Cab, Example #3 (solution)  Traffic Accidents, Example #4 (solution)

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