HCM 213 Mind on Statistics Chapter 13

Which statement is not true about hypothesis tests? A. Hypothesis tests are only valid when the sample is representative of the population for the question of interest. B. Hypotheses are statements about the population represented by the samples. C. Hypotheses are statements about the sample (or samples) from the population. D. Conclusions are statements about the population represented by the samples. KEY: C 2. The primary purpose of a significance test is to A. estimate the p-value of a sample. B. estimate the p-value of a population. C. decide whether there is enough evidence to support a research hypothesis about a sample. D. decide whether there is enough evidence to support a research hypothesis about a population. KEY: D 3. The level of significance associated with a significance test is the probability A. of rejecting a true null hypothesis. B. of not rejecting a true null hypothesis. C. that the null hypothesis is true. D. that the alternative hypothesis is true. KEY: A 4. A result is called statistically significant whenever