HW 8 - HW 8 Chi-Square: r x c Tables and Goodness of Fit 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
HW 8 Chi-Square: r x c Tables and Goodness of Fit 1. 10.47. Herpes simplex virus type 2 (HSV-2) is a sexually transmitted disease. As part of the third National Health and Nutrition Examination Survey (NHANES III), prevalence of HSV-2 was determined in four regions of the United States. The data are given in the following table Note, this is a slightly rearranged version of the table given in the text. HSV-2 No HSV-2 Northeast 323 1165 Midwest 381 1689 South 1320 4003 West 712 1986 a. Use a chi-square test to compare the prevalence rates at α = 0.01. 2. 10.51. A randomized, double-blind, placebo-controlled experiment was conducted in which patients with Alzheimer's disease were given either extract of Ginkgo biloba (EGb) or a placebo for one year. The change in each patient's Alzheimer's Disease Assessment Scale–Cognitive subscale (ADAS-Cog) score was measured. The results are given in the table. Note : If the ADAS-Cog went down, then the patient improved. Change in ADAS-Cog Score
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/13/2011 for the course STAT 205 taught by Professor Hendrix during the Fall '09 term at South Carolina.

Page1 / 2

HW 8 - HW 8 Chi-Square: r x c Tables and Goodness of Fit 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online