Questions asked by Sophia S.

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• What If a set of grades on a statistics examination are approximately normally distributed with the mean of 74 and a standard deviation of 7.9? When:
  
• How to solve the best point estimate for the population mean and calculate the margin of error? Wherein: A random sample of n= 75 observations from a quantitative population produced a mean of 29.7 and s= 3.286
  
• How to solve this problem if their are 8 random sample size, using a 95% confidece level?
  
• How to find the probability that the sample mean computed from a 25 measurements will exceed the sample mean computed from the 36 measurement by at least 3.4 but less than 5.9.?