The recommended dietary allowance (RDA) of vitamin C for women is 75 milligrams (mg) per day. A hypothesis test, with a significance level of 0.05, is to be performed to decide whether adult women are, on average, getting less than the RDA of 75 mg per day. A researcher gathers data from a random sample of women in order to carry out the test. Based on this data, she calculates a test statistic of t = -2.207 and a P-Value of 0.0178. Based on the sample results and at a 0.05 significance level she should
Reject . There is sufficient evidence that adult women do get less than the RDA of 75 mg per day. |
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Reject . There is not sufficient evidence that adult women do get less than the RDA of 75 mg per day. |
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Fail to reject . There is sufficient evidence that adult women do get less than the RDA of 75 mg per day. |
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Fail to reject. There is not sufficient evidence that adult women do get less than the RDA of 75 mg per day. |
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