1.1 The Gr
It's Magic
The Amazing Aloysius is practicing one of his tricks. As part of this trick,
he cuts a rope into many pieces and then magically puts the pieces of
rope back together. He begins the trick with a 20-foot rope and then cuts
it in half. He then takes one of the halves and cuts that piece in half. He
repeats this process until he is left with a piece so small he can no longer
cut it.
independent quantity:
I
.
dependent quantity:
Lesson 1: A PICTURE IS WORTH A THOUSAND WORDS
CL

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.