PLZ HELP I ONLY HAVE 10 MINS From previous experience, the owner of an apple orchard knows that the mean weight of gala apples is 140 grams. This year there has been more precipitation than usual and the owner believes the weights of the apples will be heavier than usual. The owner takes a random sample of 30 apples and records their weights.

What is the appropriate inference procedure?

one-sample t-test for u
one-sample z-test for p
one-sample t-test for Udiff
two-sample t-test for Uc-Up