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APST 207 (13)

Class Notes for APST 207 at University of Nevada - Reno

Practical Statistics

Exam Study Guides for APST 207

Covers all exam topics.

APST 207 Lecture Notes - Lecture 10: Michigander, Confidence Interval, Statistical Hypothesis Testing
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New Water, Same Boat T stuff ● The t-distribution changes based on degrees of freedom ○ df=n-1 ● That means that our criticale changes depending on df ○ Calculated using the T.INV.2T func...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 12: Null Hypothesis, Type I And Type Ii Errors, Dependent And Independent Variables
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Recap ● Know how to compare sample to population ○ One sample t-test (or z-test) ● Know how to compare two samples from different groups ○ Two-sample t-tests ■ Independent S...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 11: Null Hypothesis, Test Statistic
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Singles, Independents, and Pairs Example ● Many nursing students argue that, on average, they receive far less sleep than students of other majors ○ Students in the College of Business disagree. T...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 13: Random Assignment, Analysis Of Variance, Null Hypothesis
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ANOVAs ● One-way ANOVA: using only 1 independent variable (with at least three classes, or levels) and 1 independent variable ○ Groups need to be independent of one another ■ Rand...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 9: Central Limit Theorem, Null Hypothesis, Statistical Hypothesis Testing
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Hypothesis Tests Last time ● Hypothesis tests are our way of testing ○ 1. A relationship between two variables ○ 2. A difference between two groups ○ 3. An effect ● There ar...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 5: Kurtosis, Unimodality, Sampling Distribution
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More Descriptives : Kurtosis, Skew, and Sampling Distributions Distribution Shape: ● The Normal Distribution ○ Our preferred distribution shape: ■ Bell shaped ■ Symmter...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 7: Standard Error, Confidence Interval
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Probabilities and the sample means NOTE: Remember your p-value interpretation depends on the chart you use ○ To get more extreme: Positive z-score (1-p-value)*2 Negative z-score p-value* ● Two different z ...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 6: Data Cluster, Kurtosis, Standard Deviation
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Sampling Distributions and probability Central Tendency ● The values around which the data cluster ● Mean the typical value ○ = Average () ● Median the middle value ○ =Median () ● M...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 8: Confidence Interval, Standard Deviation, Simple Random Sample
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Confidence Intervals Review ● How do we know our sample mean comes from a different population than the one we’re comparing it to ? ○ It is extreme ● What do we mean by extreme ○ It...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 4: Squared Deviations From The Mean, Standard Score
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find more resources at oneclass.com Descriptive Statistics Some Symbols ● We use symbols in stats to make our lives easier ● Symbols we know: ○ N- number...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture 3: Frequency Distributions:Cental Tendency
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Frequency Distributions Quantitative distributions and histograms Quantitative Variables Represent a measurable quantity Numerical Number of credits taken fall semester Pumpkin spice latte likability Can be meaningfully av...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 2: Pew Research Center, Patient Protection And Affordable Care Act, Response Bias
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find more resources at oneclass.com Review of lecture 1 ● Cases/Experimental Units ○ Sample (a subset of cases) ○ Population (every possible case) ...

Applied Statistics
APST 207
Juliana Chomos
APST 207 Lecture Notes - Lecture 1: Eye Color, Central Tendency
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find more resources at oneclass.com Basic Concepts and Measurements ● Statistics are a set of tools and techniques that allow us to collect,organize, and interpret data and...

Applied Statistics
APST 207
Juliana Chomos
Statistics - Reference Guides

This Guide provides an easy to follow summary of all basic principles that are the foundation to Statistics and Probabilities. Using a combination of charts and sample equations, the key concepts are developed and the esse...

Econometrics
ETC2430
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