# STAT 1430

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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#### Exam Solutions for STAT 1430

##### STAT 1430 Final: STAT1430 Final Exam 2012 Fall with Answers Exam
by turquoisegnu128

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

Statistics
STAT 1430
All Professors

### Semesters

#### All STAT 1430 Materials | Spring 2019

##### STAT 1430 Lecture Notes - Spring 2019, Lecture 30 - Statistical Hypothesis Testing, Response Bias, Test Statistic 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Final: Final Exam Guide April 18, 2019 24HRPremium

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 24HRPremium

find more resources at oneclass.com STAT1430.01Lecture29Confidence Intervals for Population Proportion&Hypothesis Testing for Population Proportion April 16, 2019 What aff...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 28 - Jury Trial, Statistical Hypothesis Testing, Standard Error 24HRPremium

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 : ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 27 - Yogurt, Test Statistic, Central Limit Theorem 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 26 - Null Hypothesis, Alternative Hypothesis, Confidence Interval 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 25 - Confidence Interval, Sample Size Determination, Statistical Parameter 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 24 - Central Limit Theorem, Confidence Interval, Standard Deviation 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 23 - Statistic, Sampling Distribution, Statistical Parameter 24HRPremium

find more resources at oneclass.com STAT1430.01Lecture23Binomial Distribution March 26, 2019 Measuring Sampling Variability o Find the distribution of all possible values of ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 22 - Binomial Distribution, Random Variable, Statistic 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture 21: Binomial Distribution March 19, 2019 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 18 - Standard Deviation, Random Variable, Percentile 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 17 - Probability Distribution, Random Variable, Standard Deviation 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 16 - Probability Distribution, Antiderivative, Probability Density Function 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture 15: Random Variables February 26, 2019 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 14 - Random Variable, Gm Family 0 Engine, Weighted Arithmetic Mean 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture 13: Random Variables February 19,2019 24HRPremium

find more resources at oneclass.com STAT1430.01Lecture12Random Variables February 19, 2019 Setting Things up: Tree o o In the tree, we can multi...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 12 - Conditional Probability, Bayes Estimator 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 11 - Venn Diagram, Telemarketing, Brutus Buckeye 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture 10: Probabilities Rules February 07, 2019 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture 9: Two-way Table February 05, 2019 24HRPremium

find more resources at oneclass.com STAT1430.01Lecture 8Two-way tables February 5, 2019 Does taking aspirin reduce heart attacks? Aspirin ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 7 - Scatter Plot, Aspirin 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 6 - Pearson Product-Moment Correlation Coefficient, Descriptive Statistics, Regression Analysis 24HRPremium

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 ...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 5 - Scatter Plot, Simple Linear Regression, Pearson Product-Moment Correlation Coefficient 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 4 - Frequency Distribution, Histogram, Standard Deviation 24HRPremium

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...

Statistics
STAT 1430
Judit Bach
##### STAT 1430 Lecture Notes - Spring 2019, Lecture 3 - Bar Chart 24HRPremium

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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