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"The Problem with Angels" by Cyndy Dowling

Although this problem is wholly mine, The catalyst came from the magazine, Time.On the magazine cover I did find The realm of angels tickling my mind. Inside, 69% I found to be In angels, Americans do believe. Then, it was time to rise to the task, Ninety-five high school and college students I did ask.Viewing all as one group, Random sampling to get the scoop. So, I asked each to be true, "Do you believe in angels?" Tell me, do! Hypothesizing at the start, Totally believing in my heartThat the proportion who said yes Would be equal on this test. Lo and behold, seventy-three did arrive, Out of the sample of ninety-five.Now your job has just begun, Solve this problem and have some fun.
  • 1.65
  • 0.0984
  • Decision: Do not reject null
  • ( 0 . 6836 , 0 . 8533 ) size 12{ \( 0 "." "6836",0 "." "8533" \) } {}
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"Blowing Bubbles" by Sondra Prull

Studying stats just made me tense, I had to find some sane defense.Some light and lifting simple play To float my math anxiety away. Blowing bubbles lifts me high Takes my troubles to the sky.POIK! They're gone, with all my stress Bubble therapy is the best. The label said each time I blew The average number of bubbles would be at least 22.I blew and blew and this I found From 64 blows, they all are round! But the number of bubbles in 64 blowsVaried widely, this I know. 20 per blow became the meanThey deviated by 6, and not 16. From counting bubbles, I sure did relax But now I give to you your task.Was 22 a reasonable guess? Find the answer and pass this test!
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21. "Dalmatian Darnation" by Kathy Sparling

A greedy dog breeder named Spreckles Bred puppies with numerous frecklesThe Dalmatians he sought Possessed spot upon spotThe more spots, he thought, the more shekels. His competitors did not agree That freckles would increase the fee.They said, “Spots are quite nice But they don't affect price;One should breed for improved pedigree.” The breeders decided to prove This strategy was a wrong move.Breeding only for spots Would wreak havoc, they thought.His theory they want to disprove. They proposed a contest to Spreckles Comparing dog prices to freckles.In records they looked up One hundred one pups:Dalmatians that fetched the most shekels. They asked Mr. Spreckles to name An average spot count he'd claimTo bring in big bucks. Said Spreckles, “Well, shucks,It's for one hundred one that I aim.” Said an amateur statistician Who wanted to help with this mission.“Twenty-one for the sample Standard deviation's ample: They examined one hundred and one Dalmatians that fetched a good sum.They counted each spot, Mark, freckle and dotAnd tallied up every one. Instead of one hundred one spots They averaged ninety six dotsCan they muzzle Spreckles’ Obsession with frecklesBased on all the dog data they've got?
  • -2.39
  • 0.0093
  • Decision: Reject null
  • ( 91 . 854 , 100 . 15 ) size 12{ \( "91" "." "854","100" "." "15" \) } {}
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"Macaroni and Cheese, please!!" by Nedda Misherghi and Rachelle Hall

As a poor starving student I don't have much money to spend for even the bare necessities. So my favorite and main staple food is macaroni and cheese. It's high in taste and low in cost and nutritional value.

One day, as I sat down to determine the meaning of life, I got a serious craving for this, oh, so important, food of my life. So I went down the street to Greatway to get a box of macaroni and cheese, but it was SO expensive! $2.02 !!! Can you believe it? It made me stop and think. The world is changing fast. I had thought that the mean cost of a box (the normal size, not some super-gigantic-family-value-pack) was at most $1, but now I wasn't so sure. However, I was determined to find out. I went to 53 of the closest grocery stores and surveyed the prices of macaroni and cheese. Here are the data I wrote in my notebook:

    Price per box of mac and cheese:

  • 5 stores @ $2.02
  • 15 stores @ $0.25
  • 3 stores @ $1.29
  • 6 stores @ $0.35
  • 4 stores @ $2.27
  • 7 stores @ $1.50
  • 5 stores @ $1.89
  • 8 stores @ 0.75.

I could see that the costs varied but I had to sit down to figure out whether or not I was right. If it does turn out that this mouth-watering dish is at most $1, then I'll throw a big cheesy party in our next statistics lab, with enough macaroni and cheese for just me. (After all, as a poor starving student I can't be expected to feed our class of animals!)

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Questions & Answers

where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
Nasa has use it in the 60's, copper as water purification in the moon travel.
nanocopper obvius
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
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
analytical skills graphene is prepared to kill any type viruses .
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
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.
Nerisha Reply

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