Kava is a beverage or extract that is made from Piper methysticum, a plant native to the western Pacific islands. Suppose that,in a randomized comparative experiment to determine if taking kava daily can reduce insomnia, a group of participants withinsomnia were randomly assigned to take kava (treatment group) or a placebo (control group). After six weeks, theparticipants were interviewed to see if they experienced a decrease in insomnia. The table shows the results from the sample.The counts are the number of people in each group who experienced a decrease in insomnia.GroupDescriptionPopulationproportionSample size Sample countSample proportion1Treatment (kava)P1n₁ = 402x1 = 213P₁ = 0.52992 Control (placebo)P2n₂ = 521x₂ = 121P2 = 0.2322Compute the standard error estimate, SE, of the difference in the sample proportions. Give your answer to at least fourdecimal places.0.0438SE =IncorrectDetermine the value of the two-sample z-statistic for the difference in the two proportions, p₁ - P2. Give your answer to atleast four decimals places.7.8417z =

It is given that: p^1=0.5299, n1=402p^2=0.2322, n2=521

Answered: Kava is a beverage or extract that is…

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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