4. An herbal extract claimed to raise blood hemoglobin (Hb) level in anemic patientsmore than a placebo was tested as follows.Test 1. Two different samples (1 and 2, 10 subjects each) were obtained from the population,Sample 1 was given placebo and sample 2 was given the extract and the means of the sampleswere statistically compared based on X1 bar minus X2 bar.Test 2. 10 anemic subjects were gives capsules containing lactose for 1 month and their meanglucose level (BGL). The extract was given to the same subjects and Hb was measured againfor them. Differences between readings were obtained as placebo-herbal.If the question of interest was does the exact result in significant increase of Hb. The null andalternative hypothesis are stated asHO μ ≥ 0, vs HA μ< 0 for Test 1. HO: µ1-2 ≥ 0, vs HA: p1-u2 <0 for Test 2HO: μ1-μ2 ≥ 0, vs HA: 1- 2 <0 for Test 1. HO: μd 2 0, vs HA: μd <0 for Test 2HO μ = 0, vs HA: µd #0 for Test 1. Ho: p1- p2 = 0, vs HA: p1- µ2 #0 for Test 2HO: μ1-u2 s 0, vs HA: p1-u2 > 0 for Test 1. HO: ud s 0, vs HA: ud > 0 for Test 2HO: μd ≤ 0, vs HA: µd> 0 for Test 1. HO: μ1- 2 ≤ 0, vs HA: p1-u2 > 0 for Test 2

An Herbal extract claimed to raise the blood hemoglobin (HB) level in anemic patients more than a…

Answered: 4. An herbal extract claimed to more…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 2AGP

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Suppose we want to know the impact of air quality on crime. To perform this study, we collect air quality measurements across the U.S., as well as daily crime statistics for 300 metropolitan areas. In this study: (1) What is the explanatory variable?
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A college administrator wants to know if there is a significant difference between sexual orientation and level of family support for students at their college. The administrator takes a random sample of students who identify as gay/lesbian, bisexual or heterosexual/straight. There were 22 students sampled in each category. A measure of family support is given with higher scores indicating more family support. The means are as follows: Gay/lesbian Bisexual Heterosexual/Straight MG/L = 16 MBi = 17 MH/S = 22 Source SS df MS F Orientation 300 Error 2961 Total What is the value of the F-statistic?
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