If the p-value of a test statistic is .20 and the level of significance is .05, the null hypothesis should be rejected.
举一反三
- Which of the following is not necessary to determine a p-value? A: Knowledge of whether the test is one-tailed or two-tailed B: The value of the test statistic C: The level of significance D: Sample size
- In a test of H0 : μ = 200 against HA : μ ≠200, a sample of size 10 produces a sample mean of 206 and a p-value of 0.09. Thus, at the 0.05 level of significance: (H0 is the null hypothesis, HA is the alternative hypothesis) ( ) A: there is sufficient evidence to conclude that μ≠200 B: there is sufficient evidence to conclude that μ = 206 C: there is insufficient evidence to conclude that μ = 200 D: there is insufficient evidence to conclude that μ≠200.
- If we reject a null hypothesis at the 0.05 level of significance, then we must also reject it at the 0.10 level.
- Whenever the null hypothesis is not rejected, the alternative hypothesis:
- The P-value associated with the test statistic is A: 0.321 B: <;0.0001 C: 0.05 D: 0.0233