Satchi found a used bookstore that sells pre-owned videos and CDs. Videos cost $9 each, and CDs cost $7 each. Satchi can spend n
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Answer:
For this case the average is an statistic unbiased for the population parameter
And the average is calculated with the following formula:
Where n represent the sample size
N represent the population size, and X the observations for this case the annual income.
This statistic is an unbiased estimator of the population mean since
After calculate the average they got:
And we can use the term "sample mean" instead of the average, and is a measure of central tendency for the data
Step-by-step explanation:
For this case the average is an statistic unbiased for the population parameter
And the average is calculated with the following formula:
Where n represent the sample size
N represent the population size, and X the observations for this case the annual income.
This statistic is an unbiased estimator of the population mean since
After calculate the average they got:
And we can use the term "sample mean" instead of the average, and is a measure of central tendency for the data