Computers and Statistics Jack Lawhorn RiE Summer 2009

Slides:

Advertisements

Similar presentations

Hypothesis Testing and Comparing Two Proportions Hypothesis Testing: Deciding whether your data shows a “real” effect, or could have happened by chance.

Advertisements

STUDENTS WILL DEMONSTRATE UNDERSTANDING OF THE CALCULATION OF STANDARD DEVIATION AND CONSTRUCTION OF A BELL CURVE Standard Deviation & The Bell Curve.

STAT 135 LAB 14 TA: Dongmei Li. Hypothesis Testing Are the results of experimental data due to just random chance? Significance tests try to discover.

STATISTICS BY ELY JRADE. SHARK DATA Mean is the average of a Data set. In this case, the mean is the average male and female shark lengths.

 Probability is a way to measure the chances that something will occur in relation to the possible alternatives.  Coral Reefs are sensitive.

Statistical Analyses: Chi-square test Psych 250 Winter 2013.

Standard Deviation A measure of variability

Mean, Variance, and Standard Deviation for Grouped Data Section 3.3.

Statistics By Sonia Rodriguez. Sharp-nosed Shark Info. The average is found by adding all the data and dividing it by as many numbers you have.

1 Tests with two+ groups We have examined tests of means for a single group, and for a difference if we have a matched sample (as in husbands and wives)

Variance Standard Deviation. Atlantic Sharp-nose Sharks Mean-The average of your set. Median-The halfway point of the data set when the numbers are arranged.

Pablo Diaz 6/13/13 Research in Ecology Program.

STATISTICS BY: SIMRAN ARORA. SHARK DATA Mean: The average of a set of data. In my data set, females are normally larger than the males in this group.

1 Lecture note 4 Hypothesis Testing Significant Difference ©

Many things affect coral such as, temperature not hot, or not to cold but warm, but between degrees F and degrees C. They need a plethora.

Statistics By Miranda Fernandez Research in Ecology.

Statistics in Biology. Histogram Shows continuous data – Data within a particular range.

STATISTICS AND COMPUTER. SHARP NOSE SHARK Sharp nose sharks.

Statistics By Sofia Diaz. Sharp-nose Sharks Turtle Hatchling Game.

By: Gabriel Placido. Sharp nose sharks stay in the range of 30 to 40 inches. In schools, females are the biggest. In the open water Males tend to be bigger.

Andrea Remiro P robability means a way to measure the chances that something will occur in relation to the possible alternatives. There are three.

Important! Mean: The average of a set of numbers. The females’ average size is larger than the males in this sample.

LESSON 5 - STATISTICS & RESEARCH STATISTICS – USE OF MATH TO ORGANIZE, SUMMARIZE, AND INTERPRET DATA.

Measures of Variation. Range, Variance, & Standard Deviation.

By Kelvenie Kellom Atlantic Sharp-nose Sharks Atlanta Sharp-nosed Sharks.

 Probability- a way to measure the chances that something will occur in relation to the possible alternatives.  The temperature and depth of.

What I Learned in Statistics

Sampling and Sampling Distributions

Statistical Analysis: Chi Square

Final exam practice questions (answers at the end)

Statistical Analysis Chi Square (X2).

STATISTICS FOR RESEARCH IN ECOLOGY.

Quantitative Methods PSY302 Quiz Normal Curve Review February 7, 2018

By Adlyn Hernandez Research in Ecology

Statistics by Ian Rodriguez.

Statistics For Research In Ecology

Myers EXPLORING PSYCHOLOGY (6th Edition in Modules)

Statistics and Computers

Statistics for Research in Ecology

Statistics for Research in Ecology

Statistics and Computers

The Chi-Square Test The chi-square test is a statistical test commonly used to compare the observed results of a genetic cross with the expected results.

Statistics and computer

Part IV Significantly Different Using Inferential Statistics

Statistics By Tony Cai.

Chi-Square Analysis.

What I learned in statistics

% STATISTIC By: Matthew Tsang.

Computers and Statistics

MY AWESOME STATISTICS POWERPOINT

Statistics for research and ecology

Probability & Genetics

Statistical Process Control

Statistical Analysis Chi-Square.

Chi Square Analysis The chi square analysis allows you to use statistics to determine if your data is “good”. In our fruit fly labs we are using laws of.

STATISTICS POWERPOINT

Statistics and computer

My Amazing Statistic PowerPoint Presentation

Statistics Slide Show By, Isa Antonini.

Statistics By: Ethan Corey.

The Chi-Square Test The chi-square test is a statistical test commonly used to compare the observed results of a genetic cross with the expected results.

Exact Test Fisher’s Statistics

Chi-square problem solutions

Practice As part of a program to reducing smoking, a national organization ran an advertising campaign to convince people to quit or reduce their smoking.

Graphs and Chi Square.

Exercise 1: Open the file ‘Birthweight_reduced’

Sampling Distributions Key to Statistical Inference

Exercise 1: Open the file ‘Birthweight_reduced’

Mortality Analysis.

The Mean Variance Standard Deviation and Z-Scores

Presentation transcript:

Computers and Statistics Jack Lawhorn RiE Summer 2009

Average Length of Sharpnose Sharks Male Female Gender

Chi² Test The Chi Square test is used to see if there are any significant differences between groups of data samples.

Distribution of Mass in Flotsam Key

Coral Probability Probability= the chance of an event occuring. 4 out of my __ coral polyps survived.

Standard Deviation & Variance Variance= how close together a group of data is from the mean. Standard Deviation= the square root of the variance.

Turtle Survival Percentage

Butterfly Pupation Project Butterfly Survival Control Sample # Control Sample State Treatment sample # Treatment Sample State 1 S 2 D 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Chi-square Value: 3.24 compared w/ 3.84 from Chi-square table at 1 DF. Above: S= Survived///D= Died Bellow: Overall Survival Rate 59.4%  There was no significant difference but it was so close that it would be worth it to do the same experiment with hundreds or even thousands of samples. Chi-square Table Observed Predicted 12 9.5 4 6.5 7 9

This Is the End of the Presentation I Hope You Enjoyed It