## 28.11 Quick review questions

1. True or false? When a $$P$$-value is very small, a very large difference exists between the statistic and parameter.
2. True or false? The alternative hypothesis is one-tailed if the sample statistic is larger than the hypothesised population mean.
3. What is wrong (if anything) with this null hypothesis: $$H_0=37$$?
4. True or false: When the sampling distribution is a normal distribution, the standard deviation of this normal distribution is called the standard error.
5. True or false? Both $$z$$-scores and $$t$$-scores can be test statistics.
6. True or false? $$P$$-values can never be exactly zero.
7. True or false? A $$P$$-value is the probability that the null hypothesis is true.