This module provides a lab on Chi-Square Distribution as a part of Collaborative Statistics collection (col10522) by Barbara Illowsky and Susan Dean. Labs changed to incorporate mini-tabs.

Class Time:

Name:

Student learning outcome:

The student will evaluate if there is a significant relationship between favorite type of snack and gender.

Collect the data

Using your class as a sample, complete the following chart.

Favorite type of snack

sweets (candy&baked goods)

ice cream

chips&pretzels

fruits&vegetables

Total

male

female

Total

Looking at the above chart, does it appear to you that there is dependence between gender and favorite type of snack food? Why or why not?

Determine the classification

Conduct a hypothesis test to determine if the factors are independent

${H}_{o}$ :

${H}_{a}$ :

What distribution should you use for a hypothesis test?

Why did you choose this distribution?

Calculate the test statistic.

Find the
p-value.

Sketch a graph of the situation. Label and scale the x-axis. Shade the area corresponding to the
p-value.

State your decision.

State your conclusion in a complete sentence.

Discussion questions

Is the conclusion of your study the same as or different from your answer to (I2) above?

Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest.
Rafiq

Rafiq

what is differents between GO and RGO?

Mahi

what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.?
How this robot is carried to required site of body cell.?
what will be the carrier material and how can be detected that correct delivery of drug is done
Rafiq

The nanotechnology is as new science, to scale nanometric

brayan

nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale

Damian

Is there any normative that regulates the use of silver nanoparticles?

fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.

Tarell

what is the actual application of fullerenes nowadays?

Damian

That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.

Tarell

how did you get the value of 2000N.What calculations are needed to arrive at it