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thisisstupidash thisisstupidash
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6 years ago
The manager of a grocery store has selected a random sample of 100 customers. The average length of time it took these 100 customers to check out was 3.0 minutes. It is known that the standard deviation of the checkout time is 1 minute. The standard error of the mean equals _____.
 a. .001
  b. .01
  c. .1
  d. 1
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preetpatel94preetpatel94
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3 years ago
Thank you
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