A quality control expert at a pretzel factory took a random sample of 10 bags from a batch of over 500 bags and measured the amount of pretzels in each bag in the sample. The target amount is 440 g, and they want to test if
the mean amount is on target or not.
Let u be the mean amount in each bag in the entire batch and be the mean amount in each bag in the sample.
Which of the following is an appropriate set of hypotheses for their significance test?