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charneshai@hotm charneshai@hotm
wrote...
Posts: 606
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6 years ago
An advertising agency tested the likeability of their new commercial and reported that they were 90 confident that their results (which found that 75 of their sample liked the commercial) were within +/- 8 of the total population. What is the confidence level of this study?
 
  a. 8
  b. 16
  c. 75
  d. 90
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6 years ago
d
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