Use a significance level of 0.01 KCaptopril is a drug designed to lower systolic blood pressure. The systolic blood pressure reading (mmHg) of subjects were measured before and after they took the drug. Results are given in theaccompanying table (based on data from "Essential Hypertension: Effect of an Oral Inhibitor of Angiotensin-Converting Enzyme," by MacGregor et al., British Medical Journal, Vol. 2). Assume thatthe paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Complete parts (a) and (b).BeforeAfterOA. Ho Hd #0OC. Ho Hd 20H₁ d=0Identify the test statistic.182209174193210179169155170185151183170176177159146145167159200191198177t=(Round to two decimal places as needed.)Identify the P-value.P-value=(Round to three decimal places as needed.)Since the P-value isthan the significance level,B. Ho Hd=0OD. Ho Hd=0H₁:0Ho. There isevidence tob. Construct a confidence interval that could be used to test the claim given in part (a).The confidence interval is mmHg

Step 1:Given information:Significance level (α) = 0.01The claim is that the captopril is effective…

Answered: K Captopril is a drug designed to lower…

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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A special bumper was installed on selected vehicles in a large fleet. The dollar cost of body repairs was recorded for all vehicles that were involved in accidents over a 1-year period. Those with the special bumper are the test group and the other vehicles are the control group, shown below. Each "repair incident" is defined as an invoice (which might include more than one separate type of damage). Statistic Test Group Control Group Mean Damage X⎯⎯⎯1X¯1 = $ 1,245 X⎯⎯⎯2X¯2 = $ 1,790 Sample Std. Dev. s1 = $ 721 s2 = $ 835 Repair Incidents n1 = 17 n2 = 14 Source: Unpublished study by Thomas W. Lauer and Floyd G. Willoughby. (a) Construct a 99 percent confidence interval for the true difference of the means assuming equal variances. (Round your final answers to 3 decimal places. Negative values should be indicated by a minus sign.) The 99% confidence interval is from to (b) Repeat part (a), using the assumption of unequal variances with Welch's…
In each part, give the value of the standardized statistic (z-score) for the sample mean. 100, σ = 8, n = 4 (a) x = 88, μ = Z = (b) x = 88, μ = 100, σ = 8, n = 64 Z = (c) x = 10.63, μ = 10.0, σ = 7, n = 10,000 z =
which statistical analysis correctly analyzes the repeated measures (also known as within subjects) design?
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