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 .

4.

step-by-step explanation:

it have the same area.brainliest

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.