Summary_Table_of_Statistical_Techniques

# Summary_Table_of_Statistical_Techniques - Summary Table for...

This preview shows pages 1–3. Sign up to view the full content.

Summary Table for Statistical Techniques Inference Parameter Statistic Type of Data Examples Analysis Minitab Command Conditions 1 Estimating a mean One population mean µ (Ch 12.4) sample mean x numerical What is the average weight of adults? What is the average cholesterol level of adult females? 1-sample t-interval n s t x * ± Stat >Basic statistics >1-sample t data approximately normal or have a large sample size (n ≥ 30) 2 Test about a mean One population mean µ (Ch 13.2) sample mean x numerical Is the average GPA of juniors at Penn State higher than 3.0? Is the average Winter temperature in State College less than 42 ْ F? H o : µ = µ o H a : µ µ o or H a : µ > µ o or H a : µ < µ o The one sample t test: n s x t 0 μ - = Stat >Basic statistics >1-sample t data approximately normal or have a large sample size (n ≥ 30) 3 Estimating a proportion One population proportion p (Ch. 10) sample proportion (n ≥ 30) categorical (binary) What is the proportion of males in the world? What is the proportion of students that smoke? 1-proportion Z-interval n p p z p ) ˆ 1 ( ˆ ˆ * - ± Stat >Basic statistics >1-sample proportion n p ˆ ≥ 10 and n (1- p ˆ ) ≥ 10 4 Test about a proportion One population proportion p (Ch. 11) sample proportion p ˆ categorical (binary) Is the proportion of females different from 0.5? Is the proportion of students who fail Stat200 less than 0.1? H o : p = p o H a : p p o or H a : p > p o or H a : p < p o The one proportion Z-test: n p p p p z ) 1 ( ˆ 0 0 0 - - = Stat >Basic statistics >1-sample proportion n p o 10 and n (1-p o ) 10 1

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

View Full Document
Inference Parameter Statistic Type of Data Examples Analysis Minitab Command Conditions 5 Estimating the difference of two means difference in two population means µ 1 2 (Ch 12.5) difference in two sample means 2 1 x x - numerical How different are the mean GPAs of males and females? How many fewer
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/07/2008 for the course STAT 200 taught by Professor Barroso,joaor during the Spring '08 term at Penn State.

### Page1 / 6

Summary_Table_of_Statistical_Techniques - Summary Table for...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online