31.3k views
3 votes
What is the 97% confidence interval for a sample of 104 soda cans that have a mean amount of 15.10 ounces and a population standard deviation of 0.08 ounces?

User Hagen
by
8.9k points

1 Answer

5 votes

Answer:

{15.083, 15.117}

Explanation:


\displaystyle CI_(97\%)=15.10\pm2.17\biggr((0.08)/(√(104))\biggr)\approx\{15.083,15.117\}

Note that the critical value for a 97% confidence level is
z=2.17

User Rob Allen
by
8.0k points