A consumer researcher wanted to know if customers really are influenced by sales clerks who smile a lot. To test this, clerks at twelve stores in a large Canadian clothing chain were given special instructions at the start of the week and then sales over the week were recorded. Six of the stores were randomly selected to have the clerks received instructions to be especially courteous and be sure to smile a lot. Clerks at six other stores were simply instructed to be especially courteous. Sales (in the thousands of dollars) for the six stores in the smile condition were 36, 40, 36, 35, 32, and 44; sales for the six stores in the control condition were 40, 31, 27, 22, 26, and 30. Do these results suggest that customers will be influenced if they encounter smiling sales clerks? Use the .01 significance level.
A consumer researcher wanted to know if customers really are influenced by sales clerks who smile a lot. To test this, clerks at twelve stores in a large Canadian clothing chain were given special instructions at the start of the week and then sales over the week were recorded. Six of the stores were randomly selected to have the clerks received instructions to be especially courteous and be sure to smile a lot. Clerks at six other stores were simply instructed to be especially courteous. Sales (in the thousands of dollars) for the six stores in the smile condition were 36, 40, 36, 35, 32, and 44; sales for the six stores in the control condition were 40, 31, 27, 22, 26, and 30. Do these results suggest that customers will be influenced if they encounter smiling sales clerks? Use the .01 significance level.
What cutoff score(s) should be used?
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