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z-test vs. t-test

Learn when you should use a z test or a t test in this video. To see all my videos check out my channel http://YouTube.com/MathMeeting.
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Z Scores in SPSS: How to Calculate and Interpret z Scores in SPSS

How to obtain z scores in SPSS is illustrated. The Property of z-scores having a mean of 0 and a standard deviation of 1 is also illustrated with the data.
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Calculate the P-Value in Statistics - Formula to Find the P-Value in Hypothesis Testing

Get this complete course at http://www.MathTutorDVD.com In this lesson, we will discuss the very important topic of p-values in statistics. The p-value is a ...
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Ti 83/84: Hypothesis Tests: T-Test and Z-Test (V07a)

This video demonstrates how to do a hypothesis test of a population mean mu on the Ti 83/84 series calculator using the function T-Test. Z-Test is very similar to ...
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Stats: Hypothesis Testing (P-value Method)

Demonstrates the basics of hypothesis testing using the P-value method: find the test statistic which in turn gives us the P-value, then compare the P-value to the ...
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Z scores - Statistics

Learn how to find z scores and probability in this video example. You can see all my videos on my channel page http://YouTube.com/MathMeeting.
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t scores - Statistics

Learn how to find t scores and probability in this video example. You can see all my videos on my channel page http://YouTube.com/MathMeeting.
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How to calculate One Tail and Two Tail Tests For Hypothesis Testing.

An introduction to one and two tail tests used in hypothesis testing using a standard bell curve with a population mean and sample mean. It includes introduction ...
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z-score Calculations & Percentiles in a Normal Distribution

I show you how to calculate Z-scores and find areas under the bell curve...p-values. I will also show you how to find statistics from areas under the curve...such ...
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Normal Distribution & Z-scores

This video shows how to calculate "inside areas" and "areas in the extreme" in a normal distribution using Z-scores. This video can also be found on my website ...
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Stats: Finding Probability Using a Normal Distribution Table

How to find the area under a normal curve, given a z-value, shaded to the left, shaded to the right, and shaded in between.
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Find Critical Value in Standard Normal Z Distribution

How to find a critical value z.05 in the Standard Normal N(0,1) Distribution, using either the Table or your TI-83/84 Graphing Calculator.
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Lesson 25 - Standard Score Z-Score Explained (Statistics Tutor)

This is just a few minutes of a complete course. Get full lessons & more subjects at: http://www.MathTutorDVD.com. You will learn about the standard z-score in ...
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How to calculate Normalized z score

Tutorial on finding the mean, z score when you know the area (or probability). Playlist on Z scores http://www.youtube.com/course?list=EC6157D8E20C151497 ...
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How to calculate t distributions

tutorial on the introduction of the t distribution and how it compares to the z score. Also includes some discussion on the normal distribution and hypothesis ...
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t-test in Microsoft Excel

How to perform a simple t-test in Microsoft Excel.
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How to calculate z scores used in statistics class

Tutorial on how to calculate z scores. A z score measures the distance, in standard deviations, a specific observation is from the mean. Like us on: ...
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using a z-score table

How to look up a z-score on a z-score table.
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How to calculate Sample Size

A video on how to calculate the sample size. Includes discussion on how the standard deviation impacts sample size too. Like us on: ...
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Hypothesis Testing - one tailed 't' disribution

Learn how to perform hypothesis testing with this easy to follow statistics video. I also provided the links for my other statistics videos as well Hypothesis testing ...
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Null Hypothesis, p-Value, Statistical Significance, Type 1 Error and Type 2 Error

SKIP AHEAD: 0:39 – Null Hypothesis Definition 1:42 – Alternative Hypothesis Definition 3:12 – Type 1 Error (Type I Error) 4:16 – Type 2 Error (Type II Error) 4:43 ...
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01 - Hypothesis Testing For Means & Large Samples, Part 1

This is just a few minutes of a complete course. Get full lessons & more subjects at: http://www.MathTutorDVD.com. The student will how to use hypothesis ...
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Z score(Hindi )

This is the first video in the four lecture series on Normality. I have discussed the concept of Z score in this video. Watch how to use Z table by "Phil Chan": ...
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Paired Test

This lecture shows how one can compared the mean of matched samples. For each case in the first sample, there is a control case that matches on relevant ...
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Intro to Hypothesis Testing in Statistics - Hypothesis Testing Statistics Problems & Examples

Get the full course at: http://www.MathTutorDVD.com The student will learn the big picture of what a hypothesis test is in statistics. We will discuss terms such as ...
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How to do the Hypothesis t-test using the TI-84

Hi Guys, This video will show you how to calculate the hypothesis test using the Ti-84. This is the problem: The height of 12 supermodels were measured.
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How To... Perform a Chi-Square Test (By Hand)

Also known as a "Goodness of Fit" test, use this single sample Chi-Square test to determine if there is a significant difference between Observed and Expected ...
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How to calculate Standard Deviation, Mean, Variance Statistics, Excel

Using Microsoft Excel to calculate Standard Deviation, Mean, and Variance. Related Video: How to Calculate Standard Deviation and Variance ...
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Chi-squared Test

Paul Andersen shows you how to calculate the ch-squared value to test your null hypothesis. He explains the importance of the critical value and defines the ...
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Finding critical value ranges for z-statistics

Using online z calculator to determine critical values for alpha = .01.
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How to use Excel to Calculate Confidence Interval

Tutorial on using Microsoft Excel to determine confidence internals, margin of error, range, max, min and margin of error Playlist on Confidence Intervals ...
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How To Calculate Cube Roots In Your Head

Here's how you do cube roots in your head! Avoid looking like Education Secretary Nicky Morgan who was stumped when asked to do a cube root: ...
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What is a p-value?

A brief intro to the concept of the p-value, in the context of one-sample Z tests for the population mean. Much of the underlying logic holds for other tests as well.
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Hypothesis Testing 02: 10 Steps

Yes, 10 steps does seem like a lot but there's a reason for each one, to make sure you consciously make a decision along the way. Some of the steps are very ...
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How to calculate Confidence Intervals and Margin of Error

Tutorial on how to calculate the confidence interval and margin of error (interval estimate). Include an example and some discussion on the bell curve and z ...
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Confidence Intervals for Population Proportions

statisticslectures.com - where you can find free lectures, videos, and exercises, as well as get your questions answered on our forums!
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Hypothesis Z Test for Means Triola 8.4 #13

Hypothesis Z Test for Means Triola 8.4 #13 standard deviation of population known.
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Chi-square test in SPSS + interpretation

How to run a chi-square test and interpret the output in SPSS (v20). ASK SPSS Tutorial Series.
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Quiz 4 Question 8: hypothesis testing for mean using Z-Test

Last year the average age or online consumers was 50 years. A sample of 16 online customers from the current year showed an average of 57.562 years.
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Choosing which statistical test to use - statistics help

Seven different statistical tests and a process by which you can decide which to use. If this video helps you, please donate by clicking on: ...
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34 stats proportion tests

introduces statistical inference using sample proportions; gives -decision tree- for when to use t-tests, proportion tests, etc.
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How To Calculate and Understand Analysis of Variance (ANOVA) F Test.

Visual tutorial on how to calculate analysis of variance (ANOVA) and how to understand it too. The tutorial includes how to interpret the results of an Anova test, ...
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Simple Explanation of Chi-Squared

An explanation of how to compute the chi-squared statistic for independent measures of nominal data. For an explanation of significance testing in general, see ...
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Range, variance and standard deviation as measures of dispersion | Khan Academy

Practice this lesson yourself on KhanAcademy.org right now: ...
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Z-Scores of Sample Means - Intro to Inferential Statistics

This video is part of an online course, Intro to Inferential Statistics. Check out the course here: https://www.udacity.com/course/ud201.
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How to Calculate Anova Using R

Video on how to calculate Analysis of Variance Using R. http://www.MyBookSucks.Com/R/Anova.R http://www.MyBookSucks.Com/R ANOVA Playlist ...
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Significance Test for Mean When Sigma is UnKnown (Using Calculator)

Learn how to perform a significance test for the mean when sigma is unknown using a calculator. Learn more about online education at ...
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zScore Calculator Demo

A demonstration of how to look-up the area under the normal curve using z-scores using the online calculator and the downloadable excel file.
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4 Module 2 Reading Z Score Tables

This video illustrates methodology for reading the Z-Score Tables.
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28. Introduction to Z Transform

Video Lecture Series by IIT professors (Not Available in NPTEL) Video Lectures on "Signals and Systems" by Prof. S.C. Dutta Roy Sir For more Video ...
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