Reference no: EM132522446
1:The sampling error is the
A: difference between the value of the sample mean and the value of the population mean.
B:error caused by selecting a bad sample.
C: standard deviation multiplied by the sample size.
D: same as the standard error of the mean.
2:A population consists of 400 elements. We want to draw a simple random sample of 40 elements from this population. On the first selection, what is the probability of an element being selected?
A:0.001
B:0.0025
C:0.025
D:0.1
3: Consider a finite population with five elements labeled A, B, C, D, and E. Ten possible simple random samples of size 2 can be selected.
(a) List the 10 samples beginning with AB, AC, and so on. (Enter your answers as a comma-separated list.)
(b) Using simple random sampling, what is the probability that each sample of size 2 is selected? (Enter your probability as a fraction.)
(c) Assume random number 1 corresponds to A, random number 2 corresponds to B, and so on. List the simple random sample of size 2 that will be selected by using the random digits 8, 0, 1, 6, 1, 2, 4.
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