Casio STAT 2 Manual de usuario descargar pdf (Pagina 49)

Introduction

Open your bag of Skittles

and count the number of each color that is in the bag.

Record those numbers in the first row of the chart below. Share your sample informa-

tion with the class and record the total number of each color in the entire class in the

second row of the chart (include your data in the class data row also).

Problems and Questions

1. If you had to choose one color, which would you choose? ________________________

2. What percent of the total is that color in your bag? ________________________

3. What percent of the total is that color in the class data? ________________________

4. Create a null hypothesis by filling in the blanks below:

a. Null Hypothesis: My sample bag of _________ percent of __________ color came

from the same population as the class set of _________ percent of _________ color.

5. Perform a 1-prop Z-test of population proportion to test the null hypothesis.

a. What is the Z value? ________________

b. What is the p value? ________________

c. Is this p value high or low? ________________

d. Draw the proportion graph in the box below.

6. Can you reject the null hypothesis? Why or why not?

_______________________________________________________________________________

Name _____________________________________________ Class ________ Date ________________

Activity 9 • Rainbow of Fruit Flavors

Red Orange Yellow Green Blue Purple TOTAL

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 96 97

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Casio STAT 2 Manual de usuario Pagina 49