tray801 tray801
  • 22-02-2024
  • Mathematics
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Suppose samples of size 49 are drawn randomly from a population that has a mean of 300 and a standard deviation of 35. What is the probability of observing a sample mean equal to or greater than 310?
a) 0.1458
b) 0.0228
c) 0.9772
d) 0.8542

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