Are estimates influenced by anchoring numbers? Refer to the related Chapter 3 Cooperative Group Activity on page

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Are estimates influenced by anchoring numbers? Refer to the related Chapter 3 Cooperative Group Activity on page 129. In Chapter 3 we noted that, according to author John Rubin, when people must estimate a value, their estimate is often “anchored” to (or influenced by) a preceding number. In that Chapter 3 activity, some subjects were asked to quickly estimate the value of 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1, and others were asked to quickly estimate the value of 1 × 2 × 3 × 4 × 5 × 6 × 7 × 8. In Chapter 3, we could compare the two sets of results by using statistics (such as the mean) and graphs (such as boxplots). The methods of this chapter now allow us to compare the results with a formal hypothesis test. Specifically, collect your own sample data and test the claim that when we begin with larger numbers (as in 8 × 7 × 6), our estimates tend to be larger.

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Mathematical Interest Theory

ISBN: 9781470465681

3rd Edition

Authors: Leslie Jane, James Daniel, Federer Vaaler

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