Also needtest statisticDetermine whether to reject H0State a conclusion Preventing heart attacks: Medical researchers performed a comparison of two drugs, clopidogrel and ticagrelor, which are designed to reduce the risk of heartattack or stroke in coronary patients. A total of 6656 patients were given clopidogrel, and 6731 were given ticagrelor. Of the clopidogrel patients, 675 suffered aheart attack or stroke within one year, and of the ticagrelor patients, 579 suffered a heart attack or stroke. Can you conclude that the proportion of patientssuffering a heart attack or stroke is less for ticagrelor? Let p, denote the proportion of patients suffering a heart attack or stroke with clopidogrel and p, denotethe proportion of patients suffering a heart attack or stroke with ticagrelor. Use the a=0.05 level of significance and the critical value method.Part 1 of 5State the null and alternate hypotheses.Ho: P, = P2H : P,>P2This hypothesis test is a right-tailedtest,Part: 1 / 5Part 2 of 5Find the critical value(s). Round the answer(s) to two decimal places. If there is more than one critical value, separate them with commas.Critical value(s):0,0,..

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Answered: Preventing heart attacks: Medical…

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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The results of a recent Pew Research Center survey revealed that 326 of 798 Republicans polled and 107 of 966 Democrats polled said that tax rates on Corporations should be lowered. Based on this survey, estimate with 95% confidence the difference in the percentage of Republicans and Democrats that say tax rates on Corporations should be lowered. Express the estimate both symbolically and verbally.
27) A manufacturer claims that more than 96% of its fax machines are good. In a random sample of 68 such fax machines, 97% are good. Fill in the blanks for a hypothesis test. State the claim in words: Ho H1 What calculator function is needed?
Analgesics A pharmaceutical company tested three for-mulations of a pain relief medicine for migraine head-ache sufferers. For the experiment, 27 volunteers were selected and 9 were randomly assigned to one of threedrug formulations. The subjects were instructed to takethe drug during their next migraine headache episode andto report their pain on a scale of 1 = no pain to 10 =extreme pain 30 minutes after taking the drug. a) State the null and alternative hypotheses, being care-ful to talk about Drug and Pain levels as well as parameters.b) Perform an ANOVA on these data. What can youconclude?c) Check the assumptions and conditions for an ANOVA.Do you have any concerns about the experimentaldesign or the analysis?d) (Optional) Perform a multiple comparisons test todetermine which drugs differ in terms of mean painlevel reported.Drug Pain Drug Pain Drug PainA 4 B 6 C 6A 5 B 8 C 7A 4 B 4 C 6A 3 B 5 C 6A 2 B 4 C 7A 4 B 6 C 5A 3 B 5 C 6A 4 B 8 C 5A 4 B 6 C 5
11. Recent research has shown that creative people are menter admitted that the wrong bubble sheet had they were asked to transfer their answers to a bubble terparts (Gino and Ariely, 2012). Participants in the general knowledge test for which the participants naires and then returned to the lab several days later circled their answers on the test sheet. Afterward, sheets for computer scoring. However, the experi- e likely to cheat than their less creative coun- more terpa first completed creativity assessment question- naines eries of tasks. One task was a multiple-choice so that the correct answers were been copied still faintly visible. Thus, the participants had an Opportunity to cheat and inflate their test scores Higher scores were valuable because participants were paid based on the number of correct answers. 1 However, the researchers had secretly coded the original tests and the bubble sheets so that they could measure the degree of cheating for each participant. Assuming that…
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According to a recent survey of adults, approximately 62% carry cash on a regular basis. The adults were also asked if they have children. Of the 46% who have children, 85% carry cash on a regular basis. Is carrying cash independent from having children in this sample? No, P(carry cash) = P(carry cash|have children). No, P(carry cash) ≠ P(carry cash|have children). Yes, P(carry cash) = P(carry cash|have children). Yes, P(carry cash) ≠ P(carry cash|have children).
ANOVA constitutes a pairwise comparison. 1) True 2) False
In a recent study it was found that of 450 physicians polled 162 were women and of 530 nurses polled 445 were women. Test the claim using the traditional method of hypothesis testing that the proportion of nurses who are women is greater than the proportion of physicians who are women. Assume a significance level of 0.01 Let p1=the proportion of nurses who are women Let p2=the proportion of physicians who are women a) What is the claim? p1 ">, < or =" p2 b) What is the Null Hypothesis? p1 ">, < or =" p2 c) What is the Alternative Hypothesis? p1 ">, < or =" p2 d) Which type of test will be used?
A local chess club claims that the length of time to play a game has a mean of less than 59 minutes. Write sentences describing type I and type II errors for a hypothesis test of this claim. A type I error will occur if the actual mean of the length of time to play a game is minutes, but you the null hypothesis, A type II error will occur if the actual mean of the length of time to play a game is minutes, but you the null hypothesis, 59 59
More than 46% of people support the death penalty. Express the null and alternative hypotheses in symbolic form for this claim (enter as a percentage). Ho: P H₁:P Use the following codes to enter the following symbols: enter >= enter <= # enter != Submit Question ohm.lumenlearning.com - Private
A medical researcher says that 25% of U.S. adults are smokers. In a random sample of 272 US, adults, 57 say that they are smokers at a- 0.05, is there enough evidence to support that less than 25% of U.S. adults are smokers? What shall we use for Ho and Hy? Hg p-0.25 Hp 025 Ho p> 025 Hi:p<025
Traditionally in hypothesis testing, the null hypothesis represents the "status quo" which will be overturned only if there is evidence against it. Which of the statements below might represent a null hypothesis? dlo O Increased benefit offerings improved the quality of job candidates. O The defendant is not guilty. O The defendant is guilty. Continue Submit Assignment © 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center| Accessibility MacBook Air 80 888 DII DD F2 F3 F4 F5 F7 F9 F10 %23 & 3 4 5 6 9 * 00

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