ANSWERS Process of Science (9.21) How Is the Chi-Square Test Used in Genetic Analysis? Lab Notebook Chi-Square test for Case 1 | | | | | | | |Phenotype |Observed No. (o) |Expected No. (e) |(o-e) |(o-e) 2 |(o-e) 2 | | | | | |
Words: 449 - Pages: 2
The goal of this exercise is to assess your understanding of the chi square test. Please read the problem carefully and answer the question. Good luck! Assume you have data below that displays the number of students who elect different undergraduate majors. Number of Students Selecting Different Majors | |Computer Sciences |English Literature | | | | |Pre-Med |
Words: 344 - Pages: 2
140 | 160 | 300 | | % within Sex | 46.7% | 53.3% | 100.0% | | % within Music | 100.0% | 100.0% | 100.0% | Chi-Square Tests | | Value | df | Asymp. Sig. (2-sided) | Exact Sig. (2-sided) | Exact Sig. (1-sided) | Pearson Chi-Square | .611a | 1 | .434 | | | Continuity Correctionb | .438 | 1 | .508 | | | Likelihood Ratio | .612 | 1 | .434 | | | Fisher's Exact Test | | | | .474 | .254 | Linear-by-Linear
Words: 4191 - Pages: 17
Cross-Tabulations and Chi Square • Cross-tabulations o Consists of rows and columns defined by the categories classifying each variable. Used for nonmonotonic relationships o Sometimes referred to as an “r x c” table (rows x columns) ▪ Crosstabulation cell – intersection of a row and a column o Interested in inner cells to determine relationship before statistically testing ▪ Use the chi-square for statistical tests o Tables
Words: 4307 - Pages: 18
Lab assignment 2 Part 1: Correlation Analysis 1. Explain when we run a correlation analysis? (1 Mark) Answer: We run a correlation to see if there are any significant associations between variables and/or before we do a regression analysis. 2. Interpret the correlations. Which variables are correlated? (hint: as p/sig values are provided use a cut-off of 0.05 to determine significance). Explain the nature of each relationship (8 Marks) Answer: a) Inquiry and Memory variables
Words: 957 - Pages: 4
Group Project 5 Sydney Ratzlaff Write-up Question #3 * For Income Level, the Pearson Chi-Square significance value is less than .05 which means income can affect the probability that a person will eat at Hobbit’s Choice. Probable Hobbit’s patrons are more likely to make between $50,000 and 74,999 (93%) a year than non-probable patrons (7%). Income | Probable Patron | Non-Probable Patron | <$15,000 | 0% | 100% | $15,000 to 24,999 | 0% | 100% | $25,000 to 49,999 | 0% | 100% | $50
Words: 2269 - Pages: 10
A STUDY ON TRAFFIC RULES VIOLATIONS IN CHENNAI (VANDALUR AND PERANGALUTUR) Submitted By: Praveen Kumar A, MBA. INTRODUCTION Violations in traffic laws are very common in a highly populated country like India. The conditions are even worse in metro cities like Delhi, Mumbai Bangalore and Chennai. The accidents associated with these violations cause a huge loss to life and property. Same is the case in Chennai. Being a metro city and a highly populated one also, has a lot of road
Words: 3886 - Pages: 16
is well known for its rapid growing rate, which makes it an easy breeding cycle and easy to pollinate. In giving so this makes “Brassica rapa” a great participant for testing Gregor Mendel’s theories of inheritance. The “Brassica rapa” acts like a test subject in testing cross-pollination giving the understanding to the dominant allele of colored stems. There are different colors that are visible on the stem that are above the soil; the colors vary from green to purple. P1 seed was ordered, germinated
Words: 1324 - Pages: 6
CHI-SQUARE TEST Adapted by Anne F. Maben from "Statistics for the Social Sciences" by Vicki Sharp The chi-square (I) test is used to determine whether there is a significant difference between the expected frequencies and the observed frequencies in one or more categories. Do the number of individuals or objects that fall in each category differ significantly from the number you would expect? Is this difference between the expected and observed due to sampling error, or is it a real difference? Chi-Square
Words: 1536 - Pages: 7
CHI-SQUARE TEST - ANALYSIS OF CONTINGENCY TABLES David C. Howell University of Vermont The term ”chi-square” refers both to a statistical distribution and to a hypothesis testing procedure that produces a statistic that is approximately distributed as the chi-square distribution. In this entry the term is used in its second sense. PEARSON’S CHI-SQUARE The original chi-square test, often known as Pearson’s chi-square, dates from papers by Karl Pearson in the earlier 1900s. The test serves both
Words: 1422 - Pages: 6
