One scientific test of whiteness study mentioned in Example 1 tested the effect of a self applied
Question:
Mean Vita Shade Score Recorded at Two Weeks and Change
a. State the hypotheses that were tested for the change from baseline means.
b. The P-value is reported as 6 0.05 for the test comparing the means. Explain how to interpret this value.
c. Calculate the pooled standard error, the t statistic, and the resulting P-value.
d. The ratio of the change from baseline sample means was 2.91. Interpret this ratio.
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Related Book For
Statistics The Art And Science Of Learning From Data
ISBN: 9780321755940
3rd Edition
Authors: Alan Agresti, Christine A. Franklin
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