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Nalu Nalu
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Posts: 823
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6 years ago
A simple random sample of 64 observations was taken from a large population. The population standard deviation is 120 . The sample mean was determined to be 320 . The standard error of the mean is _____.
 a. 1.875
  b. 40
  c. 5
  d. 15
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6 years ago
d
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