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- Elementary statistics
- Hypothesis testing: single mean
- Rare events
Suppose you make an assumption about a property of the population (this assumption
is the
null hypothesis ). Then you gather sample data randomly. If the sample has
properties that would be very
unlikely to occur if the assumption is true, then you
would conclude that your assumption about the population is probably incorrect.(Remember that your assumption is just an
assumption - it is not a fact and it may or
may not be true. But your sample data are real and the data are showing you a fact that seems tocontradict your assumption.)
For example, Didi and Ali are at a birthday party of a very wealthy friend. They hurry
to be first in line to grab a prize from a tall basket that they cannot see inside becausethey will be blindfolded. There are 200 plastic bubbles in the basket and Didi and Ali
have been told that there is only one with a $100 bill. Didi is the first person to reachinto the basket and pull out a bubble. Her bubble contains a $100 bill. The
probability of this happening is
. Because this is so unlikely, Ali is hoping
that what the two of them were told is wrong and there are more $100 bills in thebasket. A "rare event" has occurred (Didi getting the $100 bill) so Ali doubts the
assumption about only one $100 bill being in the basket.
Questions & Answers
Discuss the differences between taste and flavor, including how other sensory inputs contribute to our perception of flavor.
taste refers to your understanding of the flavor . while flavor one The other hand is refers to sort of just a blend things.
Faith
While taste primarily relies on our taste buds, flavor involves a complex interplay between taste and aroma
Kamara
which drugs can we use for ulcers
Omeprazole
Cimetidine / Tagament
For the complicated once ulcer - kit
Patrick
what is the function of lymphatic system
to drain extracellular fluid all over the body.
asegid
The lymphatic system plays several crucial roles in the human body, functioning as a key component of the immune system and contributing to the maintenance of fluid balance. Its main functions include:
1. Immune Response: The lymphatic system produces and transports lymphocytes, which are a type of
asegid
to transport fluids fats proteins and lymphocytes to the blood stream as lymph
Adama
Anatomy is the identification and description of the structures of living things
Kamara
what's the difference between anatomy and physiology
Anatomy is the study of the structure of the body, while physiology is the study of the function of the body. Anatomy looks at the body's organs and systems, while physiology looks at how those organs and systems work together to keep the body functioning.
AI-Robot
what is enzymes all about?
Enzymes are proteins that help speed up chemical reactions in our bodies. Enzymes are essential for digestion, liver function and much more. Too much or too little of a certain enzyme can cause health problems
Kamara
how does the stomach protect itself from the damaging effects of HCl
little girl okay how does the stomach protect itself from the damaging effect of HCL
Wulku
it is because of the enzyme that the stomach produce that help the stomach from the damaging effect of HCL
Kamara
function of digestive system
function of digestive
Ali
what is the normal body temperature
please why 37 degree selcius normal temperature
Mark
the normal temperature is 37°c or 98.6 °Fahrenheit is important for maintaining the homeostasis in the body
the body regular this temperature through the process called thermoregulation which involves brain skin muscle and other organ working together to maintain stable internal temperature
Stephanie
anaemia is the decrease in RBC count hemoglobin count and PVC count
Eniola
what is the pH of the vagina
how does Lysin attack pathogens
Diya
I information on anatomy position and digestive system and there enzyme
anatomy of the female external genitalia
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Source:
OpenStax, Elementary statistics. OpenStax CNX. Dec 30, 2013 Download for free at http://cnx.org/content/col10966/1.4
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