Applied Math and Science Education Repository - Independent Samples t-Test: Chips Ahoy® vs. Supermarket Brand

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Title:

Independent Samples t-Test: Chips Ahoy® vs. Supermarket Brand

Url:

https://serc.carleton.edu/sp/cause/conjecture/examples/18165.html

Creator:

Whittinghill, Dex

Publisher:

Rowan University

Description: In this hands-on activity, created by Dex Whittinghill of Rowan University, students count the number of chips in cookies in order to carry out an independent samples t-test to see if Chips Ahoy® cookies have a higher, lower, or different mean number of chips per cookie than a supermarket brand. First there is a class discussion that can include concepts about random samples, independence of samples, recently covered tests, comparing two parameters with null and alternative hypotheses, what it means to be a chip in a cookie, how to break up the cookies to count chips, and of course a class consensus on the hypotheses to be tested. Second the students count the number of chips in a one cookie from each brand, and report their observations to the instructor. Third, the instructor develops the independent sample t-test statistic. Fourth, the students carry out (individually or as a class) the hypothesis test, checking the assumptions on sample-size/population-shape.

LC Classification:

Science -- Mathematics -- Mathematical statistics -- Sampling theory and methods
Science -- Mathematics -- Mathematical statistics -- Study and teaching. Research
Science -- Mathematics -- Probabilities -- Study and teaching. Research
Social sciences -- Statistics -- Theory and method of social science statistics -- Frequency distribution
Social sciences -- Statistics -- Theory and method of social science statistics -- Hypothesis testing

GEM Subject:

Mathematics -- Statistics
Mathematics -- Probability

Key Concept:

Mathematics -- Hypothesis testing
Mathematics -- Probability
Mathematics -- Statistics
Mathematics -- t-distribution

Resource Type:

Instructional Material -- Lesson/Lesson Plan
Instructional Material -- Instructor Guide/Manual

Format:

Document -- HTML

Audience:

Educator
Learner

Education Level:

Higher Education
Higher Education -- Undergraduate (Lower Division)
Higher Education -- Undergraduate (Upper Division)
Higher Education -- Technical Education (Upper Division)
Higher Education -- Technical Education (Lower Division)
Vocational/Professional Development Education

Language:

English

Access Rights:

Free access

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Source:

CAUSEweb

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