Many parents have turned to St. John's wort, an herbal remedy, to treat their children with attention deficit hyperactivity disorder(ADHD). The Journal of the American Medical Association (June 11, 2008) published an article that explored the herb's effectiveness.Children with ADHD were randomly assigned to take either St. John's wort capsules or placebos. The contingency table below broadlyreflects the results found in the study. (You may find it useful to reference the appropriate table: chi-square table or F table)Effect on ADHDTreatmentNo Change in ADHD Improvement in ADHDSt. John's wort1215Placebo1413At the 5% significance level, do the data indicate that St. John's wort affects children with ADHD?a. Choose the null and alternate hypotheses.O Ho: Effect on ADHD is independent of the treatment; HẠ: Effect on ADHD is dependent of the treatmentO Ho: Effect on ADHD is dependent of the treatment; HA: Effect on ADHD is independent of the treatmentb. Calculate the test statistic. (Round intermediate calculations to at least 4 decimal places and final answer to 3 decimal places.)Test statistic c. Find p-value.O p-value < 0.01O 0.01 s p-value < 0.025O 0.025 s p-value < 0.05O 0.05 s p-value < 0.10O pvalue 2 0.10d. What is your conclusion?O Reject Ho; there is not enough evidence to support the claim that the effect on ADHD and treatment are dependent.O Reject Ho; there is enough evidence to support the claim that the effect on ADHD and treatment are dependent.O Do not reject Ho; there is not enough evidence to support the claim that the effect on ADHD and treatment are dependent.O Do not reject Ho; there is enough evidence to support the claim that the effect on ADHD and treatment are dependent.

a) Hypothesis : H0 : Effect on ADHD is independent of the treatment H0 : Effect on ADHD is dependent…

Answered: Many parents have turned to St. John's…

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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