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.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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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 = 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.
Ο H): μ 15
HaiH< 15
Ο H9: μ- 15
Hai H # 15
O Ho: H = 15
H: u > 15
O HoiH= 15
Ha:Hs 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.
Reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day.
You may need to use the appropriate table in the Appendix of Tables to answer this question.
Need Help?
Read It
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 = 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. Ο H): μ 15 HaiH< 15 Ο H9: μ- 15 Hai H # 15 O Ho: H = 15 H: u > 15 O HoiH= 15 Ha:Hs 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. Reject the null hypothesis. There is sufficient evidence that average daily zinc intake falls below 15 mg/day. You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read It
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