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: H0=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.