# Examples of Testing Conjectures

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An In-Class Experiment to Estimate Binomial Probabilities part of Examples
This hands-on activity asks students to conduct a binomial experiment and calculate a confidence interval for the true probabiity. It is useful for involving students, and for having a discussion about the interpretation of confidence intervals and the role of sample size in estimation.

Subject: Mathematics:Statistics:Data Presentation, Statistical Inference and Techniques, Probability, Mathematics:Statistics, Statistics:Data Collection, Mathematics

Independent Samples t-Test: Chips Ahoy® vs. Supermarket Brand part of Examples
In this hands-on activity, students count the number of chips in cookies in order to carry out an independent samples t-test to compare Chips Ahoy&#174; cookies and a supermarket brand. It can involve discussion of randomness and independence of samples, comparing two parameters with null and alternative hypotheses, and the practical issues of counting chips in a cookie.

Subject: Mathematics:Statistics:Data Collection, Statistical Inference and Techniques, Mathematics:Statistics, Statistics:Data Collection:Sampling and Survey Issues, Mathematics

Seeing and Describing the Predictable Pattern: The Central Limit Theorem part of Examples
This activity helps students develop a better understanding and stronger reasoning skills about the Central Limit Theorem and normal distributions. Key words: Sample, Normal Distribution, Model, Distribution, Variability, Central Limit Theorem (CLT)

Subject: Mathematics:Statistics:Probability:Limit Theorems, Mathematics:Statistics:Probability, Mathematics:Statistics, Statistics:Probability:Limit Theorems:Central Limit Theorem, Mathematics

Reasoning About Center and Spread: How do Students Spend Their Time? part of Examples
This activity helps students develop better understanding and stronger reasoning skills about distributions in terms of center and spread. Key words: center, spread, distribution

Subject: Mathematics:Statistics:Statistical Inference and Techniques, Mathematics:Statistics, Statistics:Data Presentation, Mathematics

A ducks story- introducing the idea of testing (statistical) hypotheses part of Examples
The ideas and vocabulary of testing statistical hypotheses, from research question to conclusion, are introduced using a simple story regarding a population proportion and a small sample using the binomial table to find the p-value.

Subject: Mathematics:Statistics:Data Presentation, Mathematics, Statistics:Data Collection, Mathematics:Statistics

Shrinky Dink Chemistry part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a hands-on activity where students learn about polymers and the science of plastics, while making shrinky dinks.

Subject: Chemistry:General Chemistry, General Bonding & Molecules

Investigating Chromatography: Separating Pigments part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a lab investigation where students design an experiment to extract pigments (AKA chromatography) from different colored, water soluble markers.

Subject: Chemistry

Using Your Hair to Understand Descriptive Statistics part of Examples
The purpose of this activity is to enhance students&#8217; understanding of various descriptive measures in statistics. In particular, students will gain a visual understanding of means, medians, quartiles, and boxplots without doing any computations by completing this activity.

Subject: Mathematics:Statistics:Data Collection, Mathematics, Statistics:Data Collection:Measurements Properties and Issues, Mathematics:Statistics

Investigating Chromatography: Separating Pigments part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
This activity is a lab investigation where students design an experiment to extract pigments (AKA chromatography) from different colored, water soluble markers.

Subject: Chemistry

Investigating Flight with Paper Airplanes part of MnSTEP Teaching Activity Collection:MnSTEP Activity Mini-collection
Students will determine a testable question and create an experiment related to flight of paper airplanes. They will gather and record data and present their findings to classmates.

Subject: Physics