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

Class Time:

Names:

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.
You may need to combine two
food categories so that each cell has an expected value of at least 5

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?
Hypothesis test
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?
Why do you think that occurred?
Questions & Answers
I only see partial conversation and what's the question here!

what about nanotechnology for water purification

please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.

Damian

is there industrial application of fullrenes.
What is the method to prepare fullrene on large scale.?

Rafiq

industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong

Damian

How we are making nano material?

What is meant by 'nano scale'?

What is STMs full form?

LITNING

scanning tunneling microscope

Sahil

how nano science is used for hydrophobicity

Santosh

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

Rafiq

what is Nano technology ?

write examples of Nano molecule?

Bob

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?

what king of growth are you checking .?

Renato

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?

why we need to study biomolecules, molecular biology in nanotechnology?

yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..

Adin

biomolecules are e building blocks of every organics and inorganic materials.

Joe

anyone know any internet site where one can find nanotechnology papers?

sciencedirect big data base

Ernesto

Introduction about quantum dots in nanotechnology

nano basically means 10^(-9). nanometer is a unit to measure length.

Bharti

do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?

how to know photocatalytic properties of tio2 nanoparticles...what to do now

it is a goid question and i want to know the answer as well

Maciej

characteristics of micro business

Abigail

for teaching engĺish at school how nano technology help us

Anassong

How can I make nanorobot?

Lily

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

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1 It is estimated that 30% of all drivers have some kind of medical aid in South Africa. What is the probability that in a sample of 10 drivers: 3.1.1 Exactly 4 will have a medical aid. (8) 3.1.2 At least 2 will have a medical aid. (8) 3.1.3 More than 9 will have a medical aid.

Source:
OpenStax, Collaborative statistics. OpenStax CNX. Jul 03, 2012 Download for free at http://cnx.org/content/col10522/1.40

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