Suppose you want to estimate (with 99% level confidence) the mean salary of the employees of the company W. For this, you made a survey and applied...

Suppose you want to estimate (with 99% level confidence) the mean salary of the employees of the company W. For this, you made a survey and applied it to ten workers of the company: $22000, $21500, $24000, $23500, $22800, $21600, $25000, $20800, $26000, $25500.

i need help estimating with a 99% level confidence for the sample above.