Statistics 101

15 Points Per Correct Answer - No time limit  

1. What is the mean of the following series- 2 2 2 4 4 5 5 6 8 11 12 16 18 ? 2 16 5 7.31

2. What is the median of the following series- 2 2 2 4 4 5 5 6 8 11 12 16 18 ? 16 2 5 7.31

3. What is the mode of the following series- 2 2 2 4 4 5 5 6 8 11 12 16 18 ? 5 2 7.31 16

4. What is the range of the following series- 2 2 2 4 4 5 5 6 8 11 12 16 18 ? 16 2 7.31 5

5. If you graph a normally distributed set of data (one without obvious irregularities or biases, such as the height of all people in your school), what will the shape of that graph be? Bell-shaped Sloping upwards Flat J-curve

6. What is the most commonly used statistical measure of spread in a normally-distributed population? Variance Z score Covariance Standard deviation

7. Which of the following would be appropriate for a t-test? Determining whether an anti-cancer drug increases the number of patients who survive more than one y Determining which of several medicines has the greatest effect on cell growth Determining if a small set of pieces of oak firewood burn longer than pine firewood Determining whether the weight of all male golden eagles in a population is statistically different

8. Which of the following would be appropriate for a z test? Determining which of several medicines has the greatest effect on cell growth Determining whether an anti-cancer drug increases the number of patients who survive more than one y Determining if a small set of pieces of oak firewood burn longer than pine firewood Determining whether the weight of all male golden eagles in a population is statistically different from that of female eagles

9. Which of the following would be appropriate for a chi-square test? Determining if a small set of pieces of oak firewood burn longer than pine firewood Determining which of several medicines has the greatest effect on cell growth Determining whether an anti-cancer drug increases the number of patients who survive more than one year Determining whether the weight of all male golden eagles in a population is statistically different

10. Which of the following would be appropriate for ANOVA? Determining whether an anti-cancer drug increases the number of patients who survive more than one y Determining if a small set of pieces of oak firewood burn longer than pine firewood Determining whether the weight of all male golden eagles in a population is statistically different Determining which of several medicines has the greatest effect on cell growth