Question

In: Statistics and Probability

Assume that a population of size 5 specifies that all possible samples of size "3" are...

Assume that a population of size 5 specifies that all possible samples of size "3" are extracted without repetition.

Values:

2,500.00

2,650.00

2,790.00

3,125.00

3,200.00

1) Show that the expected value of the standard sampling error is greater than the standard deviation of the population.

2) Calculate the confidence interval of the sample means with a significance level of 80% and indicate which samples are not representative and develop an analysis.

3) Select the non-representative samples and calculate the mean of the population mean with a level of significance of 80% and develop an analysis.

* confidence level

Solutions

Expert Solution

Expected standard sampling error = 1/10 * 2935.1511612356

= 293.5151

hence

E(S) >

orchestra answered 2 years ago
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