St. John Fisher College

3. In the t table on the row for df = 18 and two tail (, t is ± 2.101. Rejection regions : t < - 2.101 or t > 2.101. 4. Since -1.816 ( -2.101, fail to reject H0 . 5. There is not enough evidence at the 5% level of significance to reject the claim that the mean pH is 6.8. Testing a proportion p ................
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