8. A teacher wants to write an ordered 6-question test from a pool of 15 questions. How many different forms of the test can the teacher write.

A deli offers 6 different toppings. You are allowed 4 different toppings. In other words, you can't select the same topping more than one more time per sandwich. How many choices of 4 toppings are there

As part of a sixth-grade class project the teacher brings to class a jar containing 200 gumballs of two different colors: red and green.  Andy is asked to draw a sample of his own choosing and estimate the number of red gumballs in the jar.  Andy draws a sample of 25 gumballs, of which 8 are red and 17 are green.  Use Andy's sample to estimate the number of red gumballs in the jar. There are approximately Answer red gumballs in the jar.

It is harder to get into graduate programs in psychology or history? We randomly selected five institutions from among all U.S. institutions with graduate programs. The first number for each is the minimum GPA for applicants to the psychology doctoral program, and the second is for applicants to the history doctoral program. These GPAs were posted on the website of the well-known college guide company Peterson's.    Wayne State University: 3.0, 2.75 University of Iowa: 3.0, 3.0 University of Nevada-Reno: 3.0, 2.75 George Washington University: 3.0, 3.0 University of Wyoming: 3.0, 3.0   1. The participants are not people, explain why it is appropriate to use a paired-samples t test for this situation.

Does that sound about right