# 10.10 Hypothesis testing of two means and two proportions: lab i

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Labs changed to incorporate mini-tabs.

Hypothesis Testing Lab -Two Samples

Name:

## Student learning outcomes:

* The student will select the appropriate distributions to use in each case.

* The student will conduct hypothesis tests and interpret the results.

## House prices

Conduct a hypothesis test to determine if the proportion of homes in San Diego that cost more than \$350,000 is different from the proportion of homes in Los Angeles that cost more than \$350,000. Using either the newspaper’s housing section or a website, randomly choose 40 house prices from each city. Be sure to include a variety of areas. Choosing only homes in La Jolla will greatly bias your data. (α = 0.03)

1. H o = H a =

San Diego: x = n = Los Angeles: x = n =

3. The distribution to use for the test is:

4. Using Minitab, draw a graph and label it appropriately. Shade the actual level of significance. Include the graph with this lab.

5. What is the formula for calculating the test statistic?

6. Calculate the test statistic and the p-value using Mintab, and record your values here and attach the session window to this lab.

Test statistic = p-value =

7. Do you reject or not reject the null hypothesis? Why (use a complete sentence?

8. Write a clear conclusion using a complete sentence.

## Textbook prices

The data in Textbook.mtw shows both the new and used textbook price for a sample of books required for summer 2008 classes at Mesa College. Is it worthwhile to buy used textbooks? (α = 0.06)

1. H o = H a =

New: x = n = Used: x = n =

3. The distribution to use for the test is:

4. Using Minitab, draw a graph and label it appropriately. Shade the actual level of significance. Include the graph with this lab.

5. What is the formula for calculating the test statistic?

6. Calculate the test statistic and the p-value using Mintab, and record your values here:

Test statistic = p-value =

7. Do you reject or not reject the null hypothesis? Why (use a complete sentence?

8. Write a clear conclusion using a complete sentence.

where we get a research paper on Nano chemistry....?
what are the products of Nano chemistry?
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
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
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
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 a peer
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
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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?
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
why?
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
how did you get the value of 2000N.What calculations are needed to arrive at it
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