Which of the following is NOT true about the hypotheses testing? 1 Atempts to disprove or falsify a hypotheses 2 Examines the data in relation to the opisite of the reseacrh 3 examines the data in relation to a spesfic quesion 4 Atempts to prove a hypotheses

Which of the following is NOT true about the hypotheses testing? 1 Atempts to disprove or falsify a hypotheses 2 Examines the data in relation to the opisite of the reseacrh 3 examines the data in relation to a spesfic quesion 4 Atempts to prove a hypotheses

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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A local police chief claims that 46% of all robbery-related arrests are never prosecuted. A sample of 500 arrests shows that 43% of the arrests were not prosecuted. Using this information, one officer wants to test the claim that the number of arrests that are never prosecuted is below what the chief stated. Is there enough evidence at the 0.05 level to support the officer's claim? A)State the null and alternative hypotheses. B) Find the value of the test statistic. Round your answer to two decimal places. C)Specify if the test is one-tailed or two-tailed. D)Determine the P-value of the test statistic. Round your answer to four decimal places. E)Identify the value of the level of significance. F)Make the decision to reject or fail to reject the null hypothesis. G)State the conclusion of the hypothesis test.
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Support for the U.S. death penalty for convicted murderers was 63% in 2014 (Gallup poll results 2018). In a recent survey of 150 randomly selected U.S. adults, 75 said they were in favor of the death penalty for those convicted of murder. Does this sample appear to come from a population with a lower proportion in favor of the death penalty? a) State the null and alternative hypotheses in words. b) State the null and alternative hypotheses using symbols. c) What type of test is this?
Discussion 4: Null and Alternative Hypotheses Previous Next Describe how to write the null and alternative hypotheses based on a claim. Provide at least one example to clarify your explanation. *Read the majority of posts from your classmates and choose two to respond to (with a minimum of 3 sentences each). Your response should be well thought out and further the discussion. Start a New Thread
We would like to test the claim that more than 15% of households use email in the U.S. In a survey, we sampled 900 households and found that 10% of them use e- mails. Which of the following are the correct null and alternative hypotheses? a) Ho:p = 0.1; Ha:p > 0.1 b) Họ:p = 0.1; Ha:p > 0.15 c) Ho:p = 0.15; Hạ:p > 0.15 d) Ho:p > 0.15;Ha-p = 0.15
1.) Create a set of hypotheses for a test.
16% of workers got their job through internet resume sites. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage).
Suppose you wish to find out the answer to the age-old question, "Do people prefer Cola 1 or Cola 2?" You conduct a blind taste test in which individuals are randomly asked to drink one of the colas first, followed by the other cola, and then asked to disclose which drink they prefer. Results of your taste test indicate that 59 of 100 individuals prefer Cola 2. Complete parts a through c. (a) Conduct a hypothesis test (preferably using technology) Ho: p = po versus H₁: ppo for po = 0.48, 0.49, 0.50, 0.68, 0.69, 0.70 at the a= 0.05 level of significance. For which values of po do you not reject the null hypothesis? What do each of the values of po represent? Do not reject the null hypothesis for the values of po between (Type integers or decimals. Do not round.) O and inclusively.
Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 554 randomly selected adults showed that 38% of them would erase all of their personal information online if they could. Complete parts (a) and (b) below. ... a. Express the original claim in symbolic form. Let the parameter represent the adults that would erase their personal information. (Type an integer or a decimal. Do not round.)
28. In conducting a hypothesis, what is the goal of a researcher? Note: Like a prosecutor, a researcher collects evidence to "prosecute" the assumption (the null hypothesis). Put it another way: the researcher collects evidence to show that the alternative hypothesis is TRUE. Notice that we don't use phrases such as "collects evidence for the null hypothesis" or "show that the null hypothesis is true". Why? Because we already assume that the null hypothesis is true (similar to the idea that "everyone is presumed innocent" under the Court of Law), a. Collects evidence against H, (evidence against the assumption) (evidence for the researcher's belief) (evidence for the assumption) b. Collects evidence for Ha c. Collects evidence for H, с. d. Both a and b. 29. What is true about t distributions? Hint: See p 413 a. There is more than onet distribution (i.e. more than one t density curve) and they are all symmetric and centered at 0. b. As sample size increases, the t density curve…
The mean weight of male aerobics instructors in a certain city is less than 185 lbs. Express the null and alternative hypotheses in symbolic form for this claim.
Let’s assume the average income for all majors in the School of Engineering is $80,000. However, the chair of the Computer Science department thinks their students earn more than that. Please choose the appropriate null and alternative hypotheses if the chair wanted to test this belief. a. H0: u <=80,000 Ha: u > 80,000 b. H0: u= 80000 Ha: u not= 80000 c. H0: u >80000 Ha: u < 80000 d. H0: u >80000 Ha: < 80000 e. None of the above.