5: Suppose a die is tossed 5 times. What is the probability of getting exactly 1 four? 6. Bacterial viruses infect bacterial cells. In a certain experiment, 4.2 x 10 phage particles were mixed with 10" bacterial cells. The mean number of phage particles per bacterial cell is 4.2. What proportion of the bacterial culture would be expected to have no phage particles absorbed to them? 7. The expression "highly significant" usually means that the null hypothesis may be rejected at an alpha level of 0.05. A. True B. False 8. Science proceeds by disproving things through the scientific method. A. True B. False 9. Bottles of OU water have a label stating that the volume is 16 oz. A consumer group suspects the bottles are under-filled and plans to conduct a test. A Type I error in this situation would mean A. the consumer group concludes the bottles have less than 16 oz. when the mean actually is 16 oz. B. the consumer group does not conclude the bottles have less than 16 oz. when the mean actually is less than 16 DZ. C. the consumer group has evidence that the label is incorrect. 10. Which of the following statements is TRUE? A. A very low significance level increases the chances of a Type I error. B. If the effect size is small, a Type II error is unlikely. C. When the null hypothesis is rejected, the population means are equal. D. True differences are more likely to be detected if the sample size is large