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gracehiller11 gracehiller11
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6 years ago
A sample of size 40 is taken from an infinite population whose mean and standard deviation are 68 and 12, respectively. The probability that the sample mean is larger than 70 equals
 a. P(Z > 70) c. P(Z > 0.17)
  b. P(Z > 2) d. P(Z > 1.05)
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