T-Interval for a Population Mean

Question

Using the table above, construct a 95% confidence interval for the true mean gas mileage of a new car model, assuming the population is normally distributed and $$s$$ is used as an estimate of the unknown population standard deviation. Which interval is correct?
 
TABLE:
| Statistic                                | Value  |
|------------------------------------------|--------|
| $$n$$                                    | 10     |
| $$\bar{x}$$ (Sample Mean)                | 27.2   |
| $$s$$ (Sample Standard Deviation)         | 1.8    |

Accepted Answer

$$(25.91,\;28.49)$$

Answer

$$(26.0,\;28.4)$$

Answer

$$(25.0,\;29.4)$$

Answer

$$(24.9,\;29.2)$$

Statistic	Value
$$n$$	10
$$\bar{x}$$ (Sample Mean)	27.2
$$s$$ (Sample Standard Deviation)	1.8

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