Ehrd 391 exam 1 - Study guides, Class notes & Summaries

EHRD 391 - Exam 1 questions with correct answers Data is Answer A record of observation / event EX: Test score/ grade Data set is... Answer A collect of observations EX: Test scoreS / GradeS Descriptive Stats Answer 1. Used to organize and describe the characteristics of a collection of data 2. Measures central tendency (CT) and measures of variability Inferential Stats Answer 1. Used to make generalizations from a smaller group of subjects ( a sample) to a larger group of subj...

EHRD 391 Exam 1 questions with correct answers Statistics Answer A set of tools and techniques that are used for describing, organizing, and interpreting information or data -Making decisions with incomplete data Data Answer A RECORD of an observation/event such as a test score, grade in class, or response time Data Set Answer A COLLECTION of observations/events such as test scores, grades on a test, or response time Branches Of Statistics Answer Descriptive & Inferential Statistics ...

EHRD 391 Exam 1 Sandlin questions with correct answers Population Answer group of people that have at least 1 characteristic in common Sample Answer a subset of the population Statistic Answer summarized value of a sample Parameter Answer summarized value of a population descriptive statistics Answer organize and describe a collection of data inferential statistics Answer make generalizations

EHRD 391 Exam 2 questions with correct answers bivariate data Answer Data with two variables univariate data Answer data with one variable example of continuous variable Answer hrs studied and test score r Answer strength of associate between variables 4 things that scatter plot tells you Answer -degree of association -directionality -linearity -outliar if outliar is encountered Answer -make sure is not an administrative error -caluculate with and without the association - ...

EHRD 391 Exam 3 questions with correct answers Inferential Statistics (hypothesis testing) Answer -making decisions with incomplete data -notion of taking info from small groups to big ones population Answer a group of people who have 1 thing in common sample Answer a subset of the people sampling error Answer the inherent error that comes with samples Null hypothesis Answer -a statement of equality between two variables -considered the starting point -it is what we accept to b...

EHRD 391 Exam 3... questions with correct answers The Null Hypothesis can be Answer Correct or Incorrect We fail to reject Ho when Answer Data is Correct or between Tc Step 1 Answer State Ho & Ha Step 2 Answer Select "Alpha" Alpha Answer Level of risk or level of significance Step 3 Answer Select Appropriate Test "Dependent or Independent" Step 4 Answer Compute T-o "Do the Math"

EHRD 391 EXAM 2 questions with correct answers bivariate Answer 2 variables r Answer -Pearson r -tells you the degree of linear relationship between two continuous variables -has to be a meaningful relationship between the variables will be making scatter plots degree of association Answer what does the circle around the data look like? -tight circle=most related -loose circle=least related directionality Answer where it is moving +/- linearity Answer no curves or randomness ...

EHRD 391 - Exam/Final, Sandlin questions with correct answers Probability theory Answer analysis and understanding of chance occurrences Probability Answer specification of how frequently a particular event of interest is likely to occur over a large number of trials Standard Error of the Mean Answer the standard deviation of a sampling distribution Sampling Distribution of Means Answer when samples are taken and the means are calculated and graphed Central Limit Theorem Answer - sa...

Data is Answer A record of observation / event EX: Test score/ grade Data set is... Answer A collect of observations EX: Test scoreS / GradeS Descriptive Stats Answer 1. Used to organize and describe the characteristics of a collection of data 2. Measures central tendency (CT) and measures of variability Inferential Stats Answer 1. Used to make generalizations from a smaller group of subjects ( a sample) to a larger group of subjects ( a population) 2. Use of incomplete data ...

Statistics Answer A set of tools and techniques that are used for describing, organizing, and interpreting information or data -Making decisions with incomplete data Data Answer A RECORD of an observation/event such as a test score, grade in class, or response time Data Set Answer A COLLECTION of observations/events such as test scores, grades on a test, or response time Branches Of Statistics Answer Descriptive & Inferential Statistics Descriptive Statistics Answer Used to organize...