Perioodically, Merrill Lynch surveys its customers to determine customer satisfaction levels. They want to determine the impact of experience on the satisfaction ratingts of their consultants. The following are sample of survey ratings for two consultants:
Consultant A Consultant B
n 16 10
mean 6.82 6.25
s .64 .75
Test the assumption that Consultant A has higher satisfaction ratings at the 5% significance level. Show all the steps.
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