In a program designed to help patients stop smoking, 163 patients were given sustained care, and 79.8% of them were no longer smoking after one month. Use a 0.05 significance level to test the claim that 80% of patients stop smoking whengiven sustained care......Identify the null and alternative hypotheses for this test. Choose the correct answer below.A. Ho: p+0.8H1:p=0.8В. Но: р3D0.8H4:p#0.8О с. Но: р30.8H1:p<0.8D. Ho: р30.8H1:p>0.8Identify the test statistic for this hypothesis test.The test statistic for this hypothesis test is.(Round to two decimal places as needed.)Identify the P-value for this hypothesis test.The P-value for this hypothesis test is(Round to three decimal places as needed.)Identify the conclusion for this hypothesis test.O A. Reject Ho. There is sufficient evidence to reject the claim that 80% of patients stop smoking when given sustained care.B. Fail to reject Ho. There is sufficient evidence to reject the claim that 80% of patients stop smoking when given sustained care.C. Reject Ho. There is not sufficient evidence to reject the claim that 80% of patients stop smoking when given sustained care.

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Answered: In a program designed to help patients…

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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An endangered species of bird, the whooping crane, has an average egg weight of 208 grams. A researcher hypothesizes that the average weight of a whooping crane egg has increased, and wishes to test this belief at the 0.01 significance level. She records the following weights of a sample of whooping crane eggs. Is there sufficient evidence to support her claim? 210, 208.5, 211.6, 212, 210.3, 210.2, 209, 206.4, 209.7
If the test statistic is 1.95 on the Z distribution at a 3% significance level for a right-sided test, what is the conclusion? O Not enough information to make a conclusion. O Reject the null hypothesis. O Fail to reject the null hypothesis. 3 !! SAMSUNG
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Past studies have indicated that the percentage of smokers was estimated to be about 30%. Given the new smoking cessation programs that have been implemented, you now believe that the percentage of smokers has reduced. You randomly surveyed 1775 people and found that 492 smoke. Use a 0.05 significance level to test the claim that the percentage of smokers has reduced. a) Identify the null and alternative hypotheses? Ho: ? v Ha: ? v b) What type of hypothesis test should you conduct (left-, right-, or two-tailed))? O left-tailed O right-tailed O two-tailed c) Identify the appropriate significance level. Submit Question % & 8. 5.
A random sample of 851 births included 431 boys. Use a 0.10 significance level to test the claim that 51.5% of newborn babies are boys. Do the results support the belief that 51.5% of newborn babies are boys?
In 2005, Health Canada claimed that 16.9% of Canadian adults are obese. A researcher wanted to check whether this percentage has changed in 2009. In 2009, he randomly selected 90 Canadian adults and found 12 of them are obese. Use a 7% significance level. The decision rule is either Reject Ho if Zcalc > 1.48 Reject Ho if Zcalc > 1.81 Reject H0 if Zcalc < -1.81 or Zcalc > 1.81 Reject H0 if Zcalc < -1.48 or Zcalc > 1.48
A study investigated various aspects of drug use among pregnant women: With 95% Confidence, identify if there is an Inference / Difference between both samples. Did the mother use Marijuana? Yes No Low Birth Weight 90 512 Total Babies 822 6648
Suppose 242 subjects are treated with a drug that is used to treat pain and 50 of them developed nausea. Use a 0.10 significance level to test the claim that more than 20% of users develop nausea. Identify the null and alternative hypotheses for this test. Choose the correct answer below. O A. Ho: p=0.20 H₁: p0.20 H₁: p=0.20 OC. Ho: p=0.20 H₁: p>0.20 O D. Ho: p=0.20 H₁: p=0.20
6.5 Gender equality. The General Social Survey asked a random sample of 1,390 Americans the following question: “On the whole, do you think it should or should not be the government’s responsibility to promote equality between men and women?” 82% of the respondents said it “should be”. At a 95% confidence level, this sample has 2% margin of error. Based on this information, determine if the following statements are true or false, and explain your reasoning.8 (a) We are 95% confident that between 80% and 84% of Americans in this sample think it’s the government’s responsibility to promote equality between men and women. (b) We are 95% confident that between 80% and 84% of all Americans think it’s the government’s respon- sibility to promote equality between men and women. (c) If we considered many random samples of 1,390 Americans, and we calculated 95% confidence intervals for each, 95% of these intervals would include the true population proportion of Americans who think…
A random sample of 845 births included 435 boys. Use a 0.10 significance level to test the claim that 50.5% of newborn babies are boys. Do the results support the belief that 50.5% of newborn babies are boys? O A. Ho: p=0.505 H₁: p > 0.505 B. Ho: p=0.505 H₁: p<0.505 OC. Ho: p *0.505 H₁: p=0.505 D. H₁: p=0.505 H₁: p *0.505 Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is 0.57. (Round to two decimal places as needed.) Identify the P-value for this hypothesis test. The P-value for this hypothesis test is (Round to three decimal places as needed.)
USA Today ran a report about a UNC poll of 1248 adults from the southern U.S. It was reported that 8% of those surveyed believe that Elvis Presley still lives. The article began with the claim that "almost 1 out of 10" Southerners still thinks Elvis is alive. At the 0.01 significance level, test the claim that the true percentage is 10%.

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