Question

Suppose that a study of elementary school students reports that the mean age at which children begin reading is 5.5 years with a standard deviation of 0.7 years. Step 2 of 2 : If a sampling distribution is created using samples of the ages at which 43 children begin reading, what would be the standard deviation of the sampling distribution of sample means

Answer 1

Answer:

$S.E = 0.108$

Step-by-step explanation:

From the question we are told that:

Mean age $\=x=5.5$

standard deviation $\sigma= 0.7 years.$

Sample size $n=43$

Generally the equation for Standard error is mathematically given by

$S.E= \sigma \bar x$

$S.E= \frac{\sigma}{\sqrt n}$

$S.E= \frac{0.7}{\sqrt 43}$

$S.E = 0.108$