1 A normal distribution has a mean of µ = 18 with s = 4. Find score (X) needed to be in the bottom 29% of the distribution. Be sure to illustrate the normal distribution and shade in the region in question. 2) For a normal population with mean = 200 and population standard deviation = 25 find the probability of obtaining a sample mean greater than 188 for a sample of n = 20 scores? Be sure to illustrate the normal distribution and shade in the region in question.
1 A normal distribution has a mean of µ = 18 with s = 4. Find score (X) needed to be in the bottom 29% of the distribution. Be sure to illustrate the normal distribution and shade in the region in question.
2) For a normal population with mean = 200 and population standard deviation = 25 find the probability of obtaining a sample mean greater than 188 for a sample of n = 20 scores? Be sure to illustrate the normal distribution and shade in the region in question.
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