A laboratory tested n= 130 chicken eggs and found that the mean amount of cholesterol was 88 milligrams with -9 milligrams. Find the margin of error E corresponding to a 95% confidence interval for the true mean cholesterol content of all such eggs. Round your answer to the nearest tenth.

The margin of error is of 1.5 milligrams.

Step-by-step explanation:

We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Z-table as such z has a p-value of .

That is z with a pvalue of , so Z = 1.96.

Now, find the margin of error M as such

Standard deviation of 9

This means that

Sample of 130

This means that

Find the margin of error E corresponding to a 95% confidence interval for the true mean cholesterol content of all such eggs.

The margin of error is of 1.5 milligrams.

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step-by-step explanation:

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