In a study of 791 randomly selected medical malpractice lawsuits, it was found that 517 of them were dropped or dismissed. Use a 0.05 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. allowing is the hynothesis test to he conducted? JWhich of the

A group of students take the SAT, then take an SAT prep class, then take the SAT again. To test the null hypothesis that the prep class did not significantly improve scores for these students, which population mean would be used in our t-test? Zero The original (before) SAT score of the group The second (after) SAT score of the group The national mean SAT score

A statistical test of hypothesis produces the P-value P = 0.0467. Will the null hypothesis be rejected at the 0.05 level of significance? Explain in 1-2 complete sentences.

A baseball team claims that the mean length of its games is more than 1.6 hours. State Ho and H₂ in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. OA. The null hypothesis expressed in words is, "the mean length of a baseball team's games is 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: p= 1.6." OB. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: 21.6." OC. The null hypothesis expressed in words is, "the mean length of a baseball team's games is not 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: μ‡ 1.6." D. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 1.6 hours." The null hypothesis is expressed…