QuestionThe mean age of all 627 used cars for sale in a newspyor one Saturday last month was 7.8 years, with a stardard deviation of 7.6 years. The distribution of agns is right-skened age of the 40 cars he samples is 8.4 years and the standard deviation of those 40 cars is 5.8 years. Complete parts a through c .
(type integers or occimals.)
c. Are the conditions for using the CLT (Central Limit Theorem) fulfilled?
A. No, because the Normal condition is not fulfilled.
B. No, because the random sample/independence and Normal conditions are not fulfilled.
C. No, because the random samplelindependence condition is not fulfilled.
D. Yes, all the conditions for using the CLT are fulfilled.
What would be the shape of the approximate sampling distribution of a large number of means, each from a sample of 40 cars?
Normal
Rinht-clement
Studdy Solution
c. The answer is **D**.
Yes, all the conditions for using the CLT are fulfilled (assuming a reasonably random sample).
The sample size is large enough to overcome the right-skewed population distribution.
The shape of the approximate sampling distribution of a large number of means, each from a sample of 40 cars, would be **Normal**.
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