A sports nutrition company claims that their new protein bar increases the average daily protein intake of their customers. To verify this claim, a nutritionist measures the daily protein intake of a sample of individuals before and after they start eating the protein bar. To determine if the new protein bar has significantly increased the average daily protein intake, which type of hypothesis test should be used? A) One-sample hypothesis test for proportions B) Two-sample hypothesis test for proportions C) One-sample hypothesis test for means D) Two-sample hypothesis test for means