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- Collaborative statistics using
- Hypothesis testing: two means,
- Hypothesis testing: two population
Two population means
- Populations are independent and population standard deviations are unknown.
Two population proportions
- Populations are independent.
Glossary
Degrees of freedom
The number of objects in a sample that are free to vary.
Standard deviation
A number that is equal to the square root of the variance and measures how far data values are from their mean. Notation: s for sample standard deviation and σ for population standard deviation.
Variance (random variable)
A characteristic of interest in a population being studied. Common notation for variables are upper case Latin letters
X,Y,
Z,...; common notation for a specific value from the domain (set of all possible values of a variable) are lower case Latin lettersx,
y,z,.... For example, if
X is the number of children in a family, thenx represents a specific integer 0, 1, 2, 3, .... Variables in statistics differ from variables in intermediate algebra in two following ways.
(1). The domain of the random variable (RV) is not necessarily a numerical set; the domain may be expressed in words; for example, if
X = hair color then the domain is {black, blond, gray, green, orange}.
(2). We can tell what specific value
x of the Random VariableX takes only after performing the experiment.
Questions & Answers
calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4
the study of the heat energy which is associated with chemical reactions
Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
First twenty elements with their valences
what is the best way to define periodic table for jamb
what is the change of matter from one state to another
what is isolation of organic compounds
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
an increase in the pressure of a gas results in the decrease of its
definition of the periodic table
what were atoms composed of?
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Source:
OpenStax, Collaborative statistics using spreadsheets. OpenStax CNX. Jan 05, 2016 Download for free at http://legacy.cnx.org/content/col11521/1.23
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