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prisoha [69]
3 years ago
12

From a population of 200,000,000 elements, the standard deviation is known to be 14. A sample of 49 elements is selected. It is

determined that the sample mean is 56. The standard error of the mean is
Mathematics
1 answer:
Talja [164]3 years ago
4 0

Answer:

The standard error of the mean = 2

Step-by-step explanation:

Given that:

The standard deviation σ = 14

The sample size n = 49

The sample mean \overline x = 56

The formula for calculating the standard error can be expressed as:

S.E = \dfrac{\sigma}{\sqrt{n}}

S.E = \dfrac{14}{\sqrt{49}}

S.E = \dfrac{14}{7}

S.E = 2

Therefore, the standard error of the mean = 2

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