Answer:
The way to represent this it is

Explanation:
From the question we are told that
The sample mean is
The standard deviation is
Given that the confidence level is 95% then the level of significance is mathematically represented as


The critical value for
is obtained from the normal distribution table that value is

Now the margin of error is mathematically represented as


Now the error range to show a 95% confidence is mathematically represented as


Here notice that the significant figure is keep to three to match the significant figure of the given values