The recommended daily dietary allovance 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 yearsin- 115, 11.2. and 6.76. Does this data indicate that average daly zine intake in the population of all males age 65-74 falls below the recommended allowance (use a0.05.) State the appropriate null and alternative hypotheses. O HI15 O MI15 H 15 H,IS 15 HI 15 Calculate the test statistic and determine the Prvalue. (Round your test statistic to two decimal places and your Prvalue to four decimal places.) Prvalue State the concku in the ncoblem contayt

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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 = 115, x = 11.2, and s = 6.76. 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.
O H.: u = 15
H:u > 15
O H,: 4 = 15
H:u* 15
O Ho: 4 = 15
Hius 15
O Ho: u = 15
H:H< 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 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.
O Do not reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day.
O Reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day.
Transcribed Image Text: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 = 115, x = 11.2, and s = 6.76. 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. O H.: u = 15 H:u > 15 O H,: 4 = 15 H:u* 15 O Ho: 4 = 15 Hius 15 O Ho: u = 15 H:H< 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 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. O Do not reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day. O Reject the null hypothesis. There is not sufficient evidence that average daily zinc intake falls below 15 mg/day.
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