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Simora [160]
2 years ago
9

A sample of ????=25 diners at a local restaurant had a mean lunch bill of $16 with a standard deviation of ????=$4 . We obtain a

95% confidence interval as (14.43,17.57) . Which action will not reduce the margin of error?
Mathematics
1 answer:
zaharov [31]2 years ago
6 0

Answer:

"Decreasing the sample size."

Step-by-step explanation:

The margin of error is :

ME=z\times \frac{\sigma }{\sqrt{n}}

Therefore, as n decreases, margin of error increases.

In the question we are asked " Which action will not reduce the margin of error."

Therefore, the correct option for which action will not reduce the margin of error is "Decreasing the sample size."

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