For this problem, my task is simple. I have to be able to "summarize what key concepts are being explained in the example. I have to summarize what the problem is explaining and the bottom-line concepts described in the problem."

Can you help me summarize what this problem is stating and be able to explain it in basic English? Thank you.

The recommended daily dietary allowance (RDA) for zinc among males older than 50 years is 15 mg/day (World Almanac, 1992). The article \"Nutrient Intakes and Dietary Patterns of Older Americans: A National Study\" (I. of Gerontology, 1992: M 145M1 50) reported the following data on zinc intake for a sample of males age 6574- years: n=115 f=113 s=6.43 Does this data suggest that gr, the average daily zinc intake for the entire population of males age 6574, is less than the RDA? The relevant hypotheses are H0: p. = 15 Ha: pr,