lfehskens's Media Stream
Mrs. Fehskens' Brief Intro Video 2020-21
Brief Get-To-Know Mrs. Fehskens video to start the 2020-2021 school year
Sampling Types & Design of Experiments Notes
Experiment vs. Observation, Sampling Types - Random, Systematic, Stratified, Cluster, Convenience
Creating a Box Plot - Outlier Test
Steps for creating a box plot, including testing for outliers and how the graph is affected when outliers are present.
Comparing Box Plots
Identifying shape/skew and comparing 2 box plots. Uses samples of data from rolling a 20 sided and 10 sided dice.
Creating a Box Plot - No Outliers
Creating a box and whisker plot using dice rolls from a 20 sided dice.
Notes - Variation and Shape
Notes on general shape and spread of a set of data - from a graph or description
Product Ratings Example - Mean, Median, Mode
Finding mean, median, and mode from a frequency table. Displays adapted method for median when data is in a frequency table.
Inferences - Violent Video Games Article Example
Discussion of the 4 parts to the inference process applied to the article about the study connecting violent video games to aggression
Notes - Making Inferences Flowchart
Includes Descriptive vs. Inferential, Inference Process Steps, and How to Identify the Steps in Articles/Other Studies
Standard Deviation - Example 2
Calculating Standard Deviation by hand - Example 2
Finding Standard Deviation
Finding Variance and Standard Deviation by Hand - NOTES & Example 1 - includes discussion of symbols
Yahtzee # 2 - Re-rolling 2 dice
Probability Distributions - Yahtzee - Re-rolling 2 dice
Yahtzee #1 Summary AND Expected Value in Excel
First Part - Summary of Examples in Yahtzee #1 At 5:40 - explanation of Expected Value in Excel
Probability Distributions - Yahtzee #1
Definitions and TWO Examples of Probability Distribution with Re-rolling ONE dice in Yahtzee
Linear Correlation - Notes Part 2 - Outliers, Symbols
Linear Correlation Notes - Outliers, Influential Points, Symbols
Linear Correlation - Examples - #3-5
Linear Correlation - Explanation of the 3 examples in Part 1 Notes - r values, how to predict
Notes - Part 1 - Linear Correlation
Introduction to Linear Correlation, r value, r table
Linear Correlation - Example #3 (from Notes)
Discussion of Example from Notes - Problem #3 (NOT significant)
Hypothesis Testing - TWO Means - Raw Data #13 Example
Hypothesis Testing - TWO Means - Raw Data #13 Example on Textbooks - using the combined Summary and Raw Data file
Hypothesis Testing - TWO Means - Summary Data #9 Example
Another example for hypothesis testing with Two Means given a SUMMARY of the data - Problem #9 - older men vs. younger men weights
Hypothesis Testing - TWO Means Notes
Highlights the differences with hypothesis testing TWO Means and a full hypothesis test example
Hypothesis Testing - One Proportion Notes
Hypothesis Testing - One Proportion Notes - How to Calculate Z for Proportions
Hypothesis Testing - Step 6 Notes/Example
Hypothesis Testing - Deciding to Reject and Writing Conclusions * Includes the conclusion to problem #5 in Sec 7-3
Hypothesis Testing - Step 5 Notes (P Value)
Notes on Hypothesis Testing Step 5 - Calculating P Value (Probability) using z-score chart
Hypothesis Testing - Steps 1-4 only Example (#5)
Steps 1-4 only of Problem #5
Hypothesis Testing - Step 4 Notes (Test Statistic)
Hypothesis Testing - Step 4 - Calculating Test Statistic (Z-score) for Sample Data
Hypothesis Testing - Step 3 Notes
Hypothesis Testing Step 3 - Determining critical values (z-crit) - cut-off values between what is likely/unlikely to occur if the null is true
Hypothesis Testing - Step 2 Notes
Step 2 Notes - Test Type - Determining Two-Tail, Right-tail, Left-tail
Hypothesis Testing - Step 1 Notes
Intro to Null and Alternate Hypotheses and how they are written
Confidence Intervals - Proportions - Part 3 Notes - EXAMPLE
Example estimating the proportion voting for a school levy
Confidence Intervals - Proportions - Part 2 Notes - Error Formula-Steps
Recap of Proportions Notes (Part 1 Video) + Error formula and steps for creating confidence intervals with proportions - Example NOT included (Part 3 Video)
Confidence Intervals - Proportions - Part 1 Notes
Includes intro to working with proportions and symbols Does NOT include creating the interval (see Part 2)
Storing and Recalling Values in Calculator
Video explaining how to store values in TI-30X, TI-83, TI-84 calculators *Specifically directed towards confidence intervals with proportions but can be used for storing and recalling any numbers
Confidence Intervals - Means - Sm n - Day 2 Notes
Creating a confidence interval using t scores
Confidence Intervals - Means - Sm n - Day 1 Notes
Review of Confidence Intervals, Characteristics of t distribution, how to find t scores
Step 6 - Conclusion for Hypothesis Testing
Notes on Step 6 of the Hypothesis Testing Process. This includes how to write the conclusion.
lfehskens
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04:39
Step 5 - Calculating the P Value (Hypothesis Testing)
Notes on Step 5 of the Hypothesis Testing Process. Includes how to find the P Value for the test statistics.
Step 4 - Calculating the Test Statistic (Hypothesis Testing)
Notes on Step 4 of the Hypothesis Testing Process. Includes how to calculate the test statistics (z-score) for your sample.
Step 3 - Significance Level (Hypothesis Testing)
Notes on the 3rd Step in the Hypothesis Testing Process. This includes determining the significance level and exact location of the tails.
Step 2 - Test Types - Tails (Hypothesis Testing)
Notes on the 2nd Step of the Hypothesis Testing Process. This includes how to figure out the number of tails.
Step 1 - Writing Hypotheses (Hypothesis Testing)
Notes on the 1st Step of the Hypothesis Testing Process. Includes how to write the null and alternate hypotheses.
