3.Does your confidence interval provide convincing evidence of an increase in flexibility in elderly men? Explainconfidence interval using paired t-procedures. Be sure to STATE, PLAN, DO, and CONCLUDE.Researchers would like to know if Tai Chi increases flexibility in elderly men. Construct and interpret a 90%012.4.1.012.H.3.2.Flexibility rating before Tai ChiFlexibility rating after Tai Chi3.FE.4.2.D.took Tai Chi lessons for six months.after flexibility ratings (on a I to 10 scale, 10 being most flexible) for a random sample of 8 men in their 80's whoTai Chi is often recommended as a way to improve balance and flexbility in the elderly. Below are before and-C.A.B.Subject

Confidence interval is an interval so that the probability of the unknown parameter to be included…

Answered: Tai Chi is often recommended as a way…

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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Aspirin III: Decision and Conclusion Regarding the experiment in the data frame Aspirin from the abd package, the researchers wanted to know whether or not taking aspirin affects one's risk of developing cancer. Recall that they defined their parameters as follows: p1 = the proportion of ALL individuals who would develop cancer, if all of them were to take aspirin like the subjects in the Aspirin group did. p2 = the proportion of ALL individuals who would develop cancer, if all of them were to take a placebo, like the subjects in the placebo group did. They ran the code for a two-sided significance test and got the following results: ## ## ## Inferential Procedures for the Difference of Two Proportions p1-p2:## cancer grouped by treatment ## ## ## Descriptive Results:## ## yes n estimated.prop## Aspirin 1438 19934 0.07214## Placebo 1427 19942 0.07156## ## ## Inferential Results:## ## Estimate of p1-p2: 0.0005805 ## SE(p1.hat - p2.hat): 0.002586 ## ##…
3..
What is the t-test statistic value? round to the nearest tenth
I need help with question 7
otected View - Saved to this PC Search View Help 12. The city council is considering a law that would ban smoking in all public facilities. A sample has been selected from the community and tested for of the ordinance. Is there a statistically significant relationship between age and support for the anti-smoking law? Use the five step model as a guide and write a sentence or two interpreting your results. support Age More than 40 Less than 40 Support: For 145 78 223 Against 103 248 169 247 272 495 A. Use probabilities to determine if these two variable are independent or dependent P (Less than 40) 3D P(Less than 40 | For)= P(Less than 40| Against) = Are age and support for the anti-smoking law independent? (Yes independent/No = not independent) B. Conduct a hypothesis test using an alpha of .05 that these variables are i
11:34 Big Babies: A public health organization reports that 29% of baby boys 6 - 8 months old in the United States weigh more than 20 pounds. A sample of 14 babies is studied. Part 1 of 2 (a) What is the mean number who weigh more than 20 pounds in a sample of 14 babies aged 6 - s months? Round the answer to two decimal places. The mean number who weigh more than 20 pounds isD. Part 2 of 2 (b) What is the standard deviation of the number who weigh more than 20 pounds in a sample of 14 babies aged 6 - 8 months? Round the answer to four decimal places. The standard deviation of the number who weigh more than 20 pounds isO.
6
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6-4 #17 PLEASE ANSWER ALL QUESTIONS. THANK YOU Transgender Surgery Exercise 6.106 introduces a study investigating the age at which transgender people begin to transition gender and the age at which they have their first experience of gender dysphoria. The study also recorded the age at which they began gender-affirming surgery, and we examine here whether there is a difference in mean age of surgery between trans men and trans women. In the study, the mean age for the 155 trans women in the sample was 41.3 years with a standard deviation of 16.3. The mean age for the 55 trans men in the sample was 35.4 with a standard deviation of 10.8. . Does this sample provide evidence that the mean age of surgery is different between trans women and trans men? (Let Group 1 represent trans women and Group 2 represent trans men.) Find test statistic and p-value. Test statistic = (round to three decimal places)p-value = (round to three decimal places)…
Discussion Question: In this research study, one group was asked to watch a car accident and were asked to estimate the speed of the car after it "hit" the other car, while a different group also watched an accident but instead were asked to estimate the speed after the cars "collided." Explain why an independent samples t-test was used, and give your own example of a research study in which an independent samples t-test would be the appropriate statistical analysis.
A,b,c

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