The recommended daily dietary allowance for zinc among males older than age 50 years is 15 mg/day. An article reports the following summary data on intake for a sample of males age 65-74 years: n = 119, x = 12.9, and s = 6.61. Does this data indicate that average daily zinc intake in the population of all males age 65-74 falls below the recommended allowance? (Use a = 0.05.) State the appropriate null and alternative hypotheses. Hoi H = 15 Ha: H < 15 O Ho: H = 15 H: µ # 15 O Ho: H = 15 HaiH > 15 O Ho: H = 15 HaiHS 15 Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.) Z = P-value = State the conclusion in the problem context. O Reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day. O Do not reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day. O Do not reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day. O Reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day.

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