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Gimme a Kiss! Introducing Confidence Intervals Using Hershey’s Kisses

Gimme a Kiss! Introducing Confidence Intervals Using Hershey’s Kisses. Lisa Brock, West Forsyth High School lbrock@forsyth.k12.ga.us Carol Sikes, South Forsyth High School csikes@forsyth.k12.ga.us. Credit.

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Gimme a Kiss! Introducing Confidence Intervals Using Hershey’s Kisses

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  1. Gimme a Kiss!Introducing Confidence IntervalsUsing Hershey’s Kisses Lisa Brock, West Forsyth High School lbrock@forsyth.k12.ga.us Carol Sikes, South Forsyth High School csikes@forsyth.k12.ga.us

  2. Credit • We found this activity on a website for Aaron Rendahl’s STAT 4102 activities at University of Minnesota. We made very minor modifications to it. Materials & Time • Materials: • Gimme a Kiss! Handout • 5 Hershey’s Kisses per student • Small cup for each student • Napkins • Dot stickers • Gridded chart paper • Marker • Time: 45 minutes for Price is Right clip and Gimme a Kiss! Activity

  3. Before Kisses…Price is Right Clip • Credit for the idea of the Price is Right clip goes to Summer Abney, our fellow reader. • Find a clip of the Price Is Right Range Game on youtube. • Let students watch the directions for the game. Pause video. • Ask students what the strategy should be. • Watch conclusion of clip. We like to use a clip in which the person wins but the green arrow is on the border of the range. • https://www.youtube.com/watch?v=00a4pPyIwes

  4. Data Collection • Introduction to problem: What proportion of the time will a Hershey’s Kiss land on its base? • Students drop their cup of 5 Kisses 10 times so that each student obtains a sample of 50 random Hershey’s Kiss drops. • Calculate p-hat and with their group members.

  5. Calculation of Interval • Handout walks students through calculation of interval.

  6. Graph of the Intervals

  7. Pictures of Lisa’s 2014 Results According to an NCTM article, the true proportion of the time a Hershey’s Kiss will land on its base is .35.

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