A health administration recommends that individuals consume 900 mg of calcium da

Question

A health administration recommends that individuals consume 900 mg of calcium daily. After an advertising campaign aimed at male teenagers, a dairy association states that male teenagers consume more than the recommended daily amount of calcium. To support this statement, the association obtained a random sample of 50 male teenagers and found that the mean amount of calcium consumed was 910 mg, with a standard deviation of 140 mg. Is there significant evidence to support the statement of the association at the a 0.05 level of significance? Choose the correct H_0: H_1: Find to two test statistic t_0 = Find the P-value The P-value is Reject H_0. There is sufficient evidence to conclude that male teenagers consume less than the recommended daily amount of calcium Do not reject H_0. There is not sufficient evidence to conclude that male teenagers consume more than the recommended daily amount cf calcium. Do not reject H_0. There is sufficient evidence to conclude that male teenagers consume more than the recommended daily amount of calcium

Explanation / Answer

ans=

H-naught: mean=1000 versus H-one: mean>1000.

This is a right tailed test. (1.592). . . 05divided by 2 is .025, find .025 at 49 degrees of freedom; 2.009.

Do not reject H-naught since the test statistic is not greater than the critical value.

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