A two-tailed hypothesis test is used to evaluate . A. Only a nondirectional hypothesis B. Both a nondirectional and directional hypothesis C. Only a directional hypothesis D. Both a critical and comparative hypothesis Please select the best answer from the choices provided A B C D.

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.

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What is the rate of change of a line that passes through (2,-5) and (6,-2)?