The producer of a certain medicine claims that its bottling equipment is very accurate and that the standard deviation of all its filled bottles is 0.1 ounce or less. a sample of 20 bottles showed a standard deviation of .11. the test statistic to test the claim is

The test statistic to test the claim is .

Step-by-step explanation:

Let be the standard deviation of filled bottles.

As per given , we have

To fins test statistic , we use Chi -square test for population standard deviation:

, where n= sample size .

s= sample standard deviation.

We are given that , n= 20 and s= 0.11

Then,

Hence, the test statistic to test the claim is .

i pretty sure it is