Hypothesis (Alpha Value and Type of Statistical Test) | American Baptist College

University:
American Baptist College
Course:
CSCI 1534 | Data Analysis and Visualization
Academic year:

2024
Views:

325

Pages:

1
Author:

Muthia M.

Hypothesis Alpha Value A population includes all of the elements from a set of data. 1) Type I Error: α 2) Type II Error: β Type of Statistical Test 1. Parametric statistics are based on assumptions about the distribution of population from which the sample was taken. 2. Nonparametric statistics are not based on assumptions, that is, the data can collected from a sample that does not follow a specific distribution. Assumed distribution Assumed variance Parametric Normal Non-parametric Any Homogeneous Homogenous and Heterogeneous Parametric Vs Non-Parametric Analysis Type Example Parametric TestExample Compare mean between Do managers who are menTwo-sample T-Wilcoxon two independent groups have higher average salaries test Rank-sum than managers that are Test female? Compare two quantitative Examine students' Pair T-test Wilcoxon measurements taken from diagnostic test results Signed-rank the same individual before and after a unit of Test study Compare means between Is there a difference in cropAnalysis of Kruskalthree of more independent yield if a farmer uses Variance Wallis test groups fertilizer A, B, or C? (ANOVA)