In a study of 809 randomly selected medical malpractice lawsuits, it was found that509 of them were dropped or dismissed. Use a 0.01 significance level to test the claimthat most medical malpractice lawsuits are dropped or dismissed.Identify the null and alternative hypotheses.The null hypothesis, Ho, is a statement that the value of a population parameter (suchas proportion, p, mean, µ, or standard deviation, o) is equal to some claimed value. Thealternative hypothesis, H,, is the statement that the parameter has a value thatsomehow differs from the null hypothesis and uses the inequalities <, >, or #,corresponding to a left, right, or two-tailed test, respectively.5

Answered: In a study of 809 randomly selected…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a study of 807 randomly selected medical malpractice lawsuits, it was found that 507 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be conducted? O A. Ho: p+0.5 H: p= 0.5 OB. Ho: p 0.5 H,: p=0.5 OC. Họ: p= 0.5 H,: p#0.5 OE. Ho: p=0.5 H: p05 What is the test statistic? (Round to two decimal places as needed.) What is the conclusion about the null hypothesis? O A. Fail to reject the null hypothesis because the P-value is less than or equal to the significance level, a O B. Reject the nul hypothesis because the P-value is greater than the significance level, a. OC. Reject the null hypothesis because the P-value is less than or equal to the significance level, a. O D. Fail to reject the null hypothesis because the P-value is greater than the significance level, a What is the final conclusion? O A. There is sufficient evidence to support…
In a study of 779 randomly selected medical malpractice lawsuits, it was found that 470 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. C Which of the following is the hypothesis test to be conducted? ⒸA. Ho: p=0.5 O B. Ho: p=0.5 H₁: p > 0.5 H₁: p=0.5 O C. Ho: p=0.5 O D. Ho: p=0.5 H₁: p 0.5 H₁: p=0.5 What is the test statistic? 2=0 (Round to two decimal places as needed.) What is the P-value? P-value= (Round to three decimal places as needed.) Next
In a study of 803 randomly selected medical malpractice lawsuits, it was found that 507 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. Which of the following is the hypothesis test to be conducted? O A. Ho: p>0.5 H:p=0.5 OB. H: p=0.5 H: p#0.5 OC. Ho: p#0.5 OD. H: p=0.5 H:p=0.5 H:p0.5 H: p=0.5 What is the test statistic? (Round to two decimal places as needed.) What is the P-value? P-value =
A. Suppose we want to test whether or not three means are equal. We want to perform this test with a 8% significance level.If we perform an ANOVA test, what is the probability of the test producing accurate results (avoiding a Type I error)? B. Suppose we, instead, run three separate hypothesis tests (t-tests), each with 8% significance level. Mean 1 = Mean 2Mean 1 = Mean 3Mean 2 = Mean 3What is the probability that all three tests would be accurate? C. Why is an ANOVA test more accurate than 3 different tests?
The table below includes results from polygraph (lie detector) experiments conducted by researchers. In each case, it was known if the subjected lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truth and lies? No(did not lie) Yes(lied) Polygraph test indicated that the subject lied. 14 47 Polygraph test indicated that the subject did not lie. 9 12 Determine the test statistic. (round to three decimal places) Determine the P-value of the test statistic. (round to four decimal places) Do the results suggest that polygraphs are effective in distinguishing between truth and lies?
Upon enrolling in State University, freshmen are required to take an English placement exam. Over the past several years, 20% of the new students have failed the test and have been placed in remedial classes. In a sample of n = 100 students from this year's class, only 12 failed the test. Do these data indicate a significant change from previous years? Assuming a two-tailed test, what is the null hypothesis?A. p = .20 B. p = 12/100 = .12 C. X = 12/100 = .12 D. X = 12
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a statistics instructor belives that fewer than 25% of NRCC students have a cable TV subcription and instead prefer streaming content. What is the correct NULL hypothesis for this scenario? a. p< .25 b. p< or equal to .25 c. p >.25 d. p > or equal to .25
A teacher is explaining to her class the concepts of genetics regarding eye color. She assumes that each category will have the same number of students in it. Use a 0.05 level of significance. Expected Eye Colors: All the categories of eye colors are the same. Here are the results for the class. Blue Green Green Hazel Brown Blue Green Brown Hazel Hazel Hazel Brown Blue Blue Blue Brown Blue Blue Blue Brown Brown Brown Brown Brown Brown Brown Question 25 Saved Listen What is the null hypothesis? Question 25 options: Ho: All the categories of eye colors are the same. Ho: At least one of the categories of eye colors is not the same. Question 26 Saved Listen What is the alternative hypothesis? Question 26 options: Ha: At least one of the categories of eye…
In a study of 800 randomly selected medical malpractice lawsuits, it was found that 510 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed. Which of the following is the hypothesis test to be conducted? OA. Ho: p=0.5 H₁: p0.5 OD. Ho: p0.5 H₁: p=0.5 OF. Ho: p > 0.5 H₁: p=0.5
In a study of 789 randomly selected medical malpractice lawsuits, it was found that 479 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. Which of the following is the hypothesis test to be conducted? O A. Ho: p=0.5 H₁: p > 0.5 ⒸC. Ho: p=0.5 H₁: p=0.5 O E. Ho: p=0.5 H₁: p 0.5 H₁: p=0.5 O D. Ho: p *0.5 H₁: p=0.5 OF. Ho: p<0.5 H₁: p=0.5

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