Slide 1(c) 2007 IUPUI SPEA K300 (4392) Outline Type of t-test Z-test versus t-test Assumptions of the t-test One sample t-test Paired sample t-test F-test for equal variance…
Slide 1The t-test Inferences about Population Means Slide 2 Questions What is the main use of the t-test? How is the distribution of t related to the unit normal? When would…
Slide 1 Slide 2 9.4 t test and u test Slide 3 Slide 4 Hypothesis testing for population mean Example : Hemoglobin of 280 healthy male adults in a region: Question: Whether…
Slide 1 Slide 2 The t-distribution William Gosset lived from 1876 to 1937 Gosset invented the t -test to handle small samples for quality control in brewing. He wrote under…
Slide 1Biostatistics course Part 9 Comparison between two means Dr. Sc Nicolas Padilla Raygoza Department Nursing and Obstetrics Division Health Sciences and Engineering…
Slide 13/2003 Rev 1 I.2.14 – slide 1 of 28 Part IReview of Fundamentals Module 2Basic Physics and Mathematics Used in Radiation Protection Session 14Statistics - Tests…
Slide 1THE EFFECTS OF CHANGING THE REFERENCE CATEGORY 1 In the previous sequence we chose general academic schools as the reference (omitted) category and defined dummy variables…
Slide 1 Slide 2 Associations Between Outpatient Heart Failure Process of Care Measures and Mortality Gregg C. Fonarow, Nancy M. Albert, Anne B. Curtis, Mihai Gheorghiade,…
Slide 1 Slide 2 Student’s t test This test was invented by a statistician working for the brewer Guinness. He was called WS Gosset (1867-1937), but preferred to keep anonymous…