a certain test used to determine if an athlete is using banned ped's has a sensitivity of 88% and a specificity of 94%. a study suggests that approximately 25% of baseball players use ped's. make a chart of the expected test results if 1000 baseball players are tested.

a) of those who tested positive, what perecent were falsely accused? ?
b) of those who tested negative, what percent actually use ped'

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Find the quotient with the restriction.

Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 · 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 · 2 = 12 7 - 4 = 11 or 6 + 3 = 9