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Find the Indicated Probability or Percentage for the Sampling Error

Question 20

Multiple Choice

Find the indicated probability or percentage for the sampling error.
-Scores on a chemistry final exam are normally distributed with a mean of 280 and a standard deviation of 50. Determine the percentage of samples of size 4 that will have mean scores within 35 Points of the population mean score of 280.


A) 91.92%
B) 51.60%
C) 99.48%
D) 83.84%

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