What is the mean of the sampling distribution
An average book copy sells for 100$ and the standard deviation is $20. Consider a random sample consisting of 50 books?
What is the mean of the sampling distribution of the mean?
Answer with explanation please.
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A jet of water squirts out horizontally from a hole close to the bottom of the tank. When the hole consists of a diameter of around 3.50 mm, determine the height h of the water level of the tank?
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What is the standard error? The correct answer is 1.813 but how do you get that? What is the test statistic? Correct answer is 2.11 but how do you get that?
An average book copy sells for 100$ and the standard deviation is $20. Consider a random sample consisting of 50 books? What is the mean of the sampling distribution of the mean?
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