. The following data represent the respective ages of 20 students pursuing graduate studies: 33 37 25 40 45 42 43 37 27 47 32 29 42 55 37 25 58 52 38 34 Using last row as your sample, compute sampling error Based on #1, what is the probability that your sample mean is between 39 & 43
1. The following data represent the respective ages of 20 students pursuing graduate studies:
33 37 25 40 45
42 43 37 27 47
32 29 42 55 37
25 58 52 38 34
Using last row as your sample, compute sampling error
Based on #1, what is the
If 27.5% of buyers preferred to use brand X, what is the probability that in a sample of 300 the proportion is between 28% & 32%?
4. Find the z-value for 85% confidence interval.
Using #1 data & confidence interval in #4, determine the true mean of the population.
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