Question

? Question is
Image
A random sample of 20 observations produced a sample mean
of i = 92.4 and s = 25.8. What is the value of the standard
error of xi

Option 1
B 4.6
Option 2
B 15.9
Option 3
B 13
Option 4
5.8

Answer 1

Answer:

Option 4

Explanation:

....................

Answer 2

Answer: 5.8

Explanation: As according to the question,

As we know, a random sample of 20 observations produced a sample mean of i = 92.4 and s = 25.8.

So now the value of the standard error of xi,

$SE_{xi} } =\frac{25.8}{\sqrt{20} } =\frac{25.8}{4.472} =5.8$

Hence, the correct answer is  $5.8$

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