Q1. A company labeled its can soup with 900mg sodium per serving. A consumers' group is concerned that the soup contains less sodium than what is listed on the can. A sample of 25 cans had a mean sodium content of 820 mg per serving and a sample standard deviation of 40 mg. Do the cans contain less than the 900 mg of sodium per serving listed on the label? Assume the population of the amount of sodium per serving is following a normal distribution.

1) What statistical procedure can be used? Explain why.

2) Use = 0.05, and both rejection region and p-valueto make a decision.