Is the average time to complete an obstacle course different when a patch is placed over the right eyethan when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed anobstacle course with a patch over one eye and then completed an equally difficult obstacle course with apatch over the other eye. The completion times are shown below. "Left" means the patch was placed overthe left eye and "Right" means the patch was placed over the right eye.Time to Complete the CourseRight46 45 43 46 45 48 50 42Left 47 48 47 49 42 52 51 484Assume a Normal distribution. What can be concluded at the the a= 0.05 level of significance level ofsignificance?For this study, we should use Select an answera. The null and alternative hypotheses would be:Ho: Select an answer ✓(please enter a decimal)Select an answer ✓Select an answer ✓Select an answerSelect an answerH₁: Select an answer(Please enter a decimal)(please show your answer to 3 decimal places.)b. The test statistic ? v=c. The p-value =d. The p-value is 2x(Please show your answer to 4 decimal places.)

Sample Mean 45.62 Standard Deviation (S1) 2.56 Sample…

Answered: a. The null and alternative 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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f. Interpret the p-value, according to its definition. (You are not asked to make a decision on H0 here yet.) g. Based on each of the three evidences: t-statistic, CI, and p-value, would you reject H0? Why? h. Based on each of the three evidences: t-statistic, CI, and p-value , what can you conclude about mean Writing scores for the population represented by this sample?
A. Below are sample research questions. Identify which T-test (Independent orDependent) are you going to use to test your hypothesis. Expound in 2-4 sentences. 1. Is there a difference in the stress level of the working adults doing 20 minutes exerciseversus working adults not doing exercise?
p: proportion of motorists who consult their cell phone while driving A traffic officer believes that the percentage of motorists who check their cell phones while driving is different from 50%. He asks 300 motorists, of whom 130 say they use their cell phones when they drive. At the 0.01 level of significance, tell whether the officer is correct. Calculate with 4 decimals Choose: 1. the correct conclusion2. the correct interpretationSelect one: a) 1. H0 is rejected2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%. b) 1. H0 is rejected2. With 99% confidence, it can be ensured that the percentage of motorists who consult their cell phones while driving is not different from 50%. c) 1. H0 is not rejected2. It can be ensured, with 99% confidence, that the percentage of motorists who consult their cell phones while driving is different from 50%. d) 1. H0 is not rejected2. With 99% confidence, it can…
Based first from the first pic then answer the 1,2,3 questions only tysmmmm:))
Which of the following ways of stating the hypotheses for population means are valid? Select all that apply: OH₁:μ # □ Ho:μ ‡ H₁:μ< 8.3 D Hy: μ < 75.25 49 5 O Ho:: 83 10 59 20 -
A baseball team claims that the mean length of its games is more than 1.6 hours. State Ho and H₂ in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. OA. The null hypothesis expressed in words is, "the mean length of a baseball team's games is 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: p= 1.6." OB. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at least 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: 21.6." OC. The null hypothesis expressed in words is, "the mean length of a baseball team's games is not 1.6 hours." The null hypothesis is expressed symbolically as, "Ho: μ‡ 1.6." D. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 1.6 hours." The null hypothesis is expressed…
Due to concerns about the safety of bariatric weight loss surgery, in 2006 the Centers of Medicare and Medicaid Services (CMS) restricted coverage of bariatric surgery to hospitals designated as Centers for Excellence. Did the CMS restriction improve the outcomes of bariatric surgery for Medicare patients? Among the 1847 Medicare patients in the study having surgery in the 18 months preceding the restriction, 270 experienced overall complications, whereas in the 1639 patients having bariatric surgery in the 18 months following the restriction, 170 experienced overall complications. (a) What are the sample proportions of Medicare patients who experienced overall complications from bariatric surgery before and after the CMS restriction? Let p, be the sample proportion with complications before the restriction, and p, be the sample proportion with complications after the restriction. (Enter your answers rounded to four decimal places.) P2 How strong is the evidence that the proportions of…
A baseball team claims that the mean length of its games is 1.6 hours. State H0 and Ha in words and in symbols. Then determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. Explain your reasoning. State the null hypothesis in words and in symbols. Choose the correct answer below. A. The null hypothesis expressed in words is, "the mean length of a baseball team's games is 1.6 hours." The null hypothesis is expressed symbolically as, "H0: μ=1.6." B. The null hypothesis expressed in words is, "the mean length of a baseball team's games is more than 1.6 hours." The null hypothesis is expressed symbolically as, "H0: μ≠1.6." C. The null hypothesis expressed in words is, "the mean length of a baseball team's games is at most 1.6 hours." The null hypothesis is expressed symbolically as, "H0: μ≤1.6." D. The null hypothesis expressed in words is, "the mean length of a baseball team's games is…
The null and alternate hypotheses are: He: T1 T₂ H₁: T₁ T₂ A sample of 100 observations from the first population indicated that x₁ is 70. A sample of 150 observations from the second population revealed x₂ to be 90. Use the 0.05 significance level to test the hypothesis. a. State the decision rule. (Round your answer to 2 decimal places.) HO is rejected if z> b. Compute the pooled proportion. (Round your answer to 2 decimal places.) Pooled proportion
An IO psychologist believes that layoffs in at a plant may have increased stress felt by the people who retained their positions. He measures 7 employees before and after the layoffs. The results are below. Use ?=.052????α=.052tail to evaluate the statistics. a. What design was used? b. State the hypotheses in words and symbols c. Show how t was calculated & evaluate the statistic
kindly answer the questions in the picture
Do a hypothesis for the following, make sure to include and label all five steps: Test the claim that tutoring influences a student’s test scores. Use a 0.01 level of significance. Use the following before and after scores for 5 students. Before 78 79 65 78 68 After 85 83 62 85 79

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