10.6 Do people find hairy spiders scarier than non- hairy spiders? To find out, 20 people were ran- domly assigned to two groups of 10. One group viewed a hairy spider and the other group viewed a very similar, but nonhairy, spider. Each person was asked to rate the spi- der she or he viewed on a scariness scale from 1 to 10 (10 being most scary). The results were as follows. Hairy Nonhairy 7 5 6 4 10 10 8 9 7 9. 8 9. 6. 6 3. 9. 8 1.

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