Floretta, a golfer, claims that her drive distance is not equal to 238 meters, on average. Several of her friends do notbelieve her, so she decides to do a hypothesis test, at a 5% significance level, to persuade them. She hits 19 drives,collects the proper data, and works through the testing procedure:• Hou = 238; HH #238• a = 0.05 (significance level)The test statistic isX-HoZo ==256-23814V19<= 5.6• The critical values are -20.025 = -1.96 and 20.025 = 1.96.Conclude whether to reject or not reject Ho. and interpret the results.Select the correct answer below:Reject Ho. At the 5% significance level, the test results are not statistically significant and at best, provide weakevidence against the null hypothesis.Reject Ho. At the 5% significance level, the data provide sufficient evidence to conclude that the mean distanceis not equal to 238 meters.Do not reject Ho. At the 5% significance level, the test results are not statistically significant and at best,provide weak evidence against the null hypothesis.Do not reject Ho. At the 5% significance level, the data provide sufficient evidence to conclude that the meandistance is not equal to 238 meters.

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Answered: Floretta, a golfer, claims that her…

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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9 K Consider a drug that is used to help prevent blood clots in certain patients. In clinical trials, among 6210 patients treated with this drug, 151 developed the adverse reaction of nausea. Use a 0.10 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adverse reaction? Identify the null and alternative hypotheses for this test. Choose the correct answer below. OA. Ho: p=0.03 H₁: p=0.03 OB. Ho: p*0.03 H₁: p=0.03 O C. Ho: p=0.03 H₁: p>0.03 OD. Ho: p=0.03 H₁: p<0.03 Identify 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. C OA. Reject Ho. There is not sufficient evidence to warrant rejection of the claim that 3% of users develop nausea. OB. Fail to reject Ho. There is…
Forty-eight percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 130 randomly selected individuals and found 52 believed that there is life on other planets. At α=0.05, is there sufficient evidence to conclude that the percentage differs from 48%? Use the critical value method with tables. Critical values are: -1.96, 1.96 Compute the test value. Round the answer to at least two decimal places. Thank you very much!
A researcher reports t(22) = 5.30, p <.01 for an independent-measures research. How many individuals participated in the entire experiment?
You are conducting a study to see if the average female life expectancy is significantly different from 81. Your sample data (n=17) produce the test statistic t=-2.67. Find the p-value accurate to 4 decimal places.
What is the F value? Is the null hypothesis rejected or not rejected? Draw Conclusion.
A population of N = 25 scores has ΣX = 40 and ΣX2= 120. For this population, what is the value of SS (sum of squared deviations)?
Only about 13% of all people can wiggle their ears. Is this percent higher for millionaires? Of the 317 millionaires surveyed, 44 could wiggle their ears. What can be concluded at the αα = 0.05 level of significance? The test statistic ? z t Correct = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 3 decimal places.)
Data from 12 individuals was collected about their sleeping habits after meditation. These scores represent their sleep quality based on a 5 point Likert scale with higher numbers meaning better sleep quality. Use a μ = 2.4 SD = 0.75. Do these individuals differ in their sleep quality compared to the group average? Solve using the five steps of hypothesis testing. how to find Ho: M and HA: M (this is part of an assignment that can be completed as many times as necessary for 100% or whatever grade you choose, I'm just trying to understand how to do all of this because it's an online summer course and I'm very lost. Any help would be appreciated in learning to understand)
The sodium content of 30 packages of 300 grams of corn flakes of a certain brand was examined. The data in milligrams: the mean is 129.753 and s = 0.929: (a) Can the assertion that the sodium content of this brand of cereal is different from 130 mg be supported? Use = 0.5, find the p-value. b) Calculate the power of the test if the true average sodium is 130.5 mg. c) What sample size would be required to detect a true average sodium content of 130.1 if we want the power to be at least 0.75? Note:The exercise in the image is in Spanish, which is the original, to make it easier to understand.
10 veterans who suffer from PTSD are tested before and after taking an anti-anxiety medication thought to reduce PTSD symptoms. How do I report my findings in APA format? Before condition (M=52, SD= 13.4, SE=4.228) After condition (M=43, SD=13.4, SE=4.243) t(9)=1.581, p >0.05, d=0.500.
A repeated measures study with n=26 participants produces a mean difference of M D = 3 points, SS=500 for the difference scores, and t=2.50. Calculate Cohen's d and r square (r2) to measure the effect size for this study.
Access the significsnce of each of the variables in the attached table. For age, write out all of the steps for hypothesis testing. For the other variables, report a p-value and conclusion. Write out the interpretation of the hazards ratios for age and sex in words. What is the estimated hazard ratio for a 10-year increase in age?

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