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…
Suppose we are interested in the relationship between individuals’ place of residence (rural versus urban) and their political affiliation (Republican versus Democrat). A random sample of 100 individuals yields the following crosstabulation: Political Affiliation Place of Residence Republican Democrat Rural 21 29 Urban 14 36 a) In words, what is the null hypothesis to be tested? b) Is the relationship between place of residence and political affiliation statistically significant at the .05 level? (Be sure to show the statistics that lead to your decision.) c) Compute and interpret an appropriate measure of association for the relationship between these two variables.
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 =
2. Several years ago, a census of all students enrolled at a large undergraduate university revealed that 19% of the students were seniors, 23% were juniors, 27% were sophomores, and 31% were freshmen. This year, the student senate did a survey to see whether these percentages have remained the same. A random sample of 200 students included 50 senior, 46 juniors, 55 sophomores, and 49 freshmen. Using a 2.5% significance level, test the null hypothesis that the percentages are still 19% seniors, 23% juniors, 27% sophomores, and 31% freshmen. Use the Critical Value Approach.
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?
a. Identify the null and alternative hypotheses for this test. Choose the correct answer below. b. Identify the test statistic for this hypothesis test. c. The P-value for this hypothesis test is d. Identify the conclusion for this hypothesis test.
This question: 5 point(s) possible In a study of 823 randomly selected medical malpractice lawsuits, it was found that 477 of them were dropped or dismissed. Use a 0.01 significance level to test the claim that most medical malpractice lawsuits are dropped Which of the following is the hypothesis test to be conducted? OA. Ho: p=0.5 H₁: p>0.5 OC. Ho: p=0.5 H₁: p 0.5 H₁: p=0.5 OF. Ho: p0.5 H₁: p=0.5 WA (C) dismissed.
A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence at the 0.05 level to refute the publisher's claim? State the null and alternative hypothesis for the above scenario
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According to the 2010 Census, 16% of people in the United States are of Hispanic or Latino origin. One Macon County supervisor believes her county has a lower proportion of Hispanic people than the nation as a whole and questions the validity of the Census. She looks at the county's most recent survey data, a random sample of 900 county residents, and found that 90 of those surveyed are of Hispanic or Latino origin.a. Identify an appropriate null and alternative hypothesis for a test to be conducted by the county supervisor.b. Calculate a P-Value and explain its meaning in context of this scenario.c. Based on your P-Value, what conclusion might be made regarding the null hypothesis
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