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 = 114, x = 11.9, and s = 6.42.

does this data indicate that average daily zinc intake in the population of all males age 65−74 falls below the recommended allowance? (use α = 0.05.)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.)

Data indicate that average daily zinc intake in the population of all males age 65−74 falls below the recommended allowance.

Step-by-step explanation:

Let mu be the average daily zinc intake in the population of all males age 65−74

: mu= 15 mg/day

: mu< 15 mg/day

Test statistic can be calculated using the equation:

z= where

Then z= ≈ -5.15

Since p-value≈0.0001 < 0.05 is very low and smaller than significance level, we can reject the null hypothesis.

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step-by-step explanation:

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4