Knee injury: The anterior cruciate ligament (ACL) runs diagonally in the middle of the knee. An article in a respected journal reports results for 74 people who had suffered ACL injuries. Of the 74 injuries, 46 were to the left knee and 28 were to the right knee. Can you conclude that the percent of ACL injuries to the left knee differs from 50%? Use the a= 0.05 level of significance. Here are the null and alternative hypotheses. Ho: P = 0.5 H₁:P +0.5

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