Lecture 7
Sampling Distributions (contd)
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Lecture 7 Outline
1. Central Limit Theorem Limit Theorem 2. Sampling Distribution of the Difference between Two Sample Means 3. Sampling Distribution of the Sample Proportion 4. Sampling Distribution of the Diffe
Biostatistics Bios600.001 Second Semester, 2009-2010 Home Work 3: Introduction to Statistical Inference
Instructions: This problem set consists of one problem. Youll be asked to submit your work in hard copy in the form of responses to the following steps
Biostatistics Bios600.001 Second Semester, 2009-2010 Home Work 4: Estimating and Comparing Population Means; Confidence
Intervals via the t-distribution; Tests of Hypotheses and Bootstrapping Instructions: This problem set consists of one problem. Again,
Rachel Baker BIOS 600 001 2/2/10 HW #2: Probability Models and their Applications in Public Health Problem 1 (i) 2X2 Contingency Table
The FREQ Procedure Table of TRT by STATUS TRT(Treatment) STATUS(Vital status) Frequency Percent Row Pct Col Pct Alive Di
Homework 3 Problem 1
Rachel Baker BIOS 600 001 2/11/10
(ii) Means of samples of size n=2: The histogram of means is spread out (large standard deviation) and skewed to the right, or the mean is larger than the median. Mean = 16.99 sd = 6.72 (iii) Means of
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Computing Simple Descriptive Statistics The MEANS Procedure Analysis Variable : Deaths
N Lower Upper TSP Obs N Mean Std Dev Std Error Minimum Quartile Median Quartile Maximum H 20 20 56.5000000 9.3948474 2.1007517 44.0000000 49.5000000 54.5000000 61.000
Lecture 3
Time to Event Data Probability concepts and concepts and distributions
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Lecture 3 Outline
1. Exploratory Data Analysis: Time to Event Data
2. 3. 4. 5. 6. 7.
Basic Probability Concepts Rules of Probability Other Rules of Probability Examples usi