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Company executives wish to estimate the dollar amount that customers spend in one shopping visit to ...

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Company executives wish to estimate the dollar amount that customers spend in one shopping visit to ...

Company executives wish to estimate the dollar amount that customers spend in one shopping visit to their store. Initial tests were based on a small sample but now the executives double the sample size for a follow-up test. The main purpose of the larger sample is to...

▸ reduce non-response bias.

▸ decrease the variability in the population.

▸ reduce response bias.

▸ reduce confounding due to other variables.

▸ decrease the standard deviation of the sampling model.

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Stats: Modeling the World

Edition: 4^th

Authors: Bock, Velleman, De Veaux

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