STAT 1430

Statistics for the Business Sciences

Ohio State University

Fundamentals of probability and statistics: Data collection and summaries, random variables, simple linear regression, two-way tables, conditional probability, sampling distributions, confidence intervals, hypothesis tests, analysis of variance.
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STAT 1430 Final: STAT1430 Final Exam 2012 Fall with Answers
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by turquoisegnu128

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STAT 1430 Final: STAT1430 Final Exam 2012 Fall Solution
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by turquoisegnu128

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STAT 1430
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All STAT 1430 Materials | Spring 2019

STAT 1430 Lecture Notes - Spring 2019, Lecture 30 - Statistical Hypothesis Testing, Response Bias, Test Statistic
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April 18, 2019 STAT1430.01Lecture30Hypothesis Test for Population Proportion - Example 2 A recent report says that 10 of people text while driving. You think its higher than that. Your sample of 100 drivers surveyed shows ...

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STAT 1430
Judit Bach
STAT 1430 Final: Final Exam Guide April 18, 2019
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The Ohio State University Columbus Campus STAT1430 Statistics For The Business Sciences Spring 2019 Final Exam Professor: Dr. Judit Bach Final Exam Guide 1 STAT1430 FINAL EXAM GUIDE

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 29 - Outlet Store, Consumer Reports, Standard Score
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find more resources at oneclass.com STAT1430.01Lecture29Confidence Intervals for Population Proportion&Hypothesis Testing for Population Proportion April 16, 2019 What aff...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 28 - Jury Trial, Statistical Hypothesis Testing, Standard Error
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STAT1430.01Lecture28CI for Population Proportions April 11, 2019 Compare the results o Why did we get different p-values? For < and for : > (c is a constant number) One sided test (left or right) the tail is but for the : ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 27 - Yogurt, Test Statistic, Central Limit Theorem
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STAT1430.01Lecture27HypothesisTesting April 9, 2019 P-Value vs. o P-value is based on your data. o is preset cutoff to compose P-value to new data new P-value but same o We will assume =0.05 unless otherwise stated. Differ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 26 - Null Hypothesis, Alternative Hypothesis, Confidence Interval
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find more resources at oneclass.com STAT1430.01Lecture26Hypothesis Testing April 4, 2019 Hypothesis Test-big picture o Do you think the value of the parameter is more th...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 25 - Confidence Interval, Sample Size Determination, Statistical Parameter
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STAT1430.01Lecture25Hypothesis Testing April 2, 2019 Factors affecting the margin of error o Confidence level Higher Confidence Level higher Z value wider margin of error (wider internal) o Sample size (n) As n gets higher...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 24 - Central Limit Theorem, Confidence Interval, Standard Deviation
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find more resources at oneclass.com STAT1430.01Lecture24Sampling Distribution March 28, 2019 Waiting times example o Suppose the time you have to wait at a supermarket checkout line ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 23 - Statistic, Sampling Distribution, Statistical Parameter
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find more resources at oneclass.com STAT1430.01Lecture23Binomial Distribution March 26, 2019 Measuring Sampling Variability o Find the distribution of all possible values of ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 22 - Binomial Distribution, Random Variable, Statistic
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Friday, March 22, 2019 STAT1430.01Lecture22Binomial Distribution Radio Example o Suppose 30 of buckeye fans listen to the games on the radio. You sample 10 buckeye fans. Whats the chance that less than half of them listen ...

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STAT 1430
Judit Bach
STAT 1430 Lecture 21: Binomial Distribution March 19, 2019
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STAT1430.01Lecture 19Binomial Distribution March 19, 2019 Binomial Distribution o Type of variable: Discrete o Used when: Counting times of an event occurs in a sample of n. o Example: numbers in favor out of n=100 Conditi...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 18 - Standard Deviation, Random Variable, Percentile
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March 7, 2019 STAT1430.01Lecture 18Normal Distribution - The Normal Distribution Type of variable: Continuous Shape: Symmetric (bell-shaped) Center: mean !x (Symmetric, so ! Median = ! Mean) Spread: Standard-Deviation ! x ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 17 - Probability Distribution, Random Variable, Standard Deviation
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STAT1430.01Lecture17Random Variable March 6, 2019 The mean of a Continuous Random Variable o Notation: o Formula: = Waiting for a cab o Suppose X=time waiting for a cab, where you will only wait up to 10 minutes. o Suppose...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 16 - Probability Distribution, Antiderivative, Probability Density Function
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STAT1430.01Lecture16Random Variables March 1, 2019 Finding probabilities for continuous Random Variables o The probability for X within a certain interval is the integral of f(x) over that interval o For example: if X has ...

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STAT 1430
Judit Bach
STAT 1430 Lecture 15: Random Variables February 26, 2019
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Tuesday, February 26, 2019 STAT1430.01Lecture15Random Variables - Important Note If X and Y are independent, is Variance of X-Y=Variance of X-Variance of Y? - No! 2 2 2 - !XY = X Y If X and Y are independent, is Variance o...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 14 - Random Variable, Gm Family 0 Engine, Weighted Arithmetic Mean
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Thursday, February 21, 2019 STAT1430.01Lecture14Random Variables - The mean of a discrete random variable A weighted average of the possible outcomes; weights are the probabilities - Possible outcomes: x1, x2, xk Call them...

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STAT 1430
Judit Bach
STAT 1430 Lecture 13: Random Variables February 19,2019
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find more resources at oneclass.com STAT1430.01Lecture12Random Variables February 19, 2019 Setting Things up: Tree o o In the tree, we can multi...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 12 - Conditional Probability, Bayes Estimator
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STAT1430.01Lecture12Conditional Probability February 14, 2019 Tools so far o Find P(A) Marginal Given, Use math, Complement Rule o Find P(A and B) Joint, intersection Multiplication rule (general and special cases) o Find ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 11 - Venn Diagram, Telemarketing, Brutus Buckeye
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STAT1430.01Lecture11Probability Rules Feb 12, 2019 iPods o Say 90 of people aged 18-28 own an iPod o What is the chance that two randomly chosen people aged 18-28 own iPods? The two chosen people do not relate, thus they a...

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STAT 1430
Judit Bach
STAT 1430 Lecture 10: Probabilities Rules February 07, 2019
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STAT1430Lecture 10Probability Rules February 7 , 2019 Agenda o Basic terms and concepts o How to calculate probabilities Multiplication Rule Addition Rule Complement Rule o Special cases (looking at future events how data ...

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STAT 1430
Judit Bach
STAT 1430 Lecture 9: Two-way Table February 05, 2019
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find more resources at oneclass.com STAT1430.01Lecture 8Two-way tables February 5, 2019 Does taking aspirin reduce heart attacks? Aspirin ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 7 - Scatter Plot, Aspirin
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STAT1430Lecture7Correlation and RegressionTwo-way TablesJanuary 29, 2019 Scatterplot vs. Residual plot o Scatterplot Scatterplot 160 140 120 100 80 Ta60et 40 20 0 0 50 100 150 200 250 o Wal-mart ! o Residual Plot Residual ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 6 - Pearson Product-Moment Correlation Coefficient, Descriptive Statistics, Regression Analysis
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find more resources at oneclass.com STAT1430.01Lecture6Correlation and Regression Jan 24, 2019 Criteria for Best Line: Smallest SSE o SSE= Sum of the square for error ...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 5 - Scatter Plot, Simple Linear Regression, Pearson Product-Moment Correlation Coefficient
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STAT1430.01Lecture5Correlation and Regression Jan 22, 2019 Coffee sales at football games o Suppose you are the concessions manager for the Buffalo Bills, and you need to make enough coffee to supply the demand at the game...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 4 - Frequency Distribution, Histogram, Standard Deviation
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STAT 1430.01Lecture 4Descriptive Statistics January 17, 2019 Golf Scores (18 holes) o Random Sample of 100 golf scores (total number strokes) on an 18-hole course o 90, 94, 76, 96, 97, 100, 94, 94, 84, 100 o Histogram of G...

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STAT 1430
Judit Bach
STAT 1430 Lecture Notes - Spring 2019, Lecture 3 - Bar Chart
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SP19 STAT 1430.01Lecture 3Data Displays Data Displays: Examining Data Distribution o Big picture: The first step in data exploration is to Organize and summarize the data set o Using graphs to organize a data set o Using n...

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STAT 1430
Judit Bach
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