#SHAPE MAGIC 8 BALL SERIES#

We had to test its claimed answers for the good of humanity. Do you wish to continue?Īpplication? So many people put their lives in the hands of the magic 8-ball.

Because of human error, shakes could not be exactly alike each time A magic 8-ball error has occurred.

Bubbles blurred responses, and additional shakes were needed.

Answers sometimes got stuck, eliminating that shake.

We have sufficient evidence that the observed distribution of magic 8-ball responses fits our expected distribution. 1156 df = 2Ĭonclusions We fail to reject our Ho in favor of our Ha because our p-value is >  =.

Ha: the observed distribution of magic 8-ball responses does not fit that of the expected distribution.

Ho: the observed distribution of magic 8-ball responses fits that of the expected distribution.

Sample size is large enough that all expected counts > 5.

In general, the expected and observed responses were similar.Ĭhi-Squared Goodness of Fit Test Assumptions Ambiguous had very similar frequencies, and “yes” was in the middle.

The “no” response had the largest difference in % between observed and expected.

The graph below is a comparison of our data to the expected.

#SHAPE MAGIC 8 BALL SERIES#

Not in a factory, but by wizards.ĭoes our frequency distribution of responses match that of the expected distribution of eight ball responses?Īfter a series of 80 trials we found our responses to be close to the expected. We shook the 8-ball 80 times in the same two-hand manner to increase accuracy of our experiment and destroy lurking variables LURKING VARIABLES This is really how 8-balls are made.The fortunes are given by a white plastic die in the shape of an icosahedron, floating in a blue liquid, with answers to yes-no questions in raised letters on its 20 triangular faces.It is a hollow, plastic sphere resembling an oversized, black and white 8-ball.The Magic 8 Ball has been used for fortune telling since its creation by Tyco in 1946.MAGIC 8-BALL By: Connie Saltzman, Brandi Kaminski, & Joe Muller

Shape magic 8 ball