A bottling company produces bottles that hold 10 ounces of liquid. Periodically, the company gets complaints that their bottles are not holding enough liquid. To test this claim, the bottling company randomly sampled 35 bottles and found that the average amount of liquid held by the bottles is x ̅=9.9 ounces with a standard deviation s=0.3 ounce.
. State the null and alternative hypothesis as an expression?
2. State the null hypothesis as a complete sentence?
3. State the alternative hypothesis as a complete sentence?
4. Which type of test would it require? (Choose from left-tailed, right-tailed, or two-tailed)
5. Which test do you need to use? (Choose from 1-PropZTest or T-Test)?
6. What is the value of the test statistic? What is the p-value? (Both round to 4 decimal places)
7. What would be the formal conclusion?
8. What would be the practical conclusion?
9. What is your recommendation?