Download Introduction to Chance Models (Section 1.1) Introduction A key step

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equal
Now
We
Are
engaged
In
A
great
Civil
War
testing
whether
That
nation
Or
Any
nation
So
conceived
And
So
dedicated
Can
Long
Endure
We
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their
lives
that
that
nation
might
live
It
Is
altogether
fitting
and
proper
that
we
should
do
this
But
in
a
larger
sense
we
cannot
dedicate
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The
world
will
little
note
nor
long
remember
what
we
say
here
but
it
can
never
forget
what
they
did
here
It
is
for
us
the
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dedicated
to
the
great
task
remaining
before
us
that
from
these
honored
dead
we
take
increased
devotion
to
that
cause
for
which
they
gave
the
last
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freedom
and
that
government
of
the
people
by
the
people
for
the
people
shall
not
perish
from
the
earth
15. Let’s examine your sample and those of your classmates.
a. Calculate the average word length in your random sample.
b. Again produce a dotplot of the distribution of sample average word lengths for
yourself and your classmates.
c. Comment on how this distribution compares to the one from #8 based on nonrandom sampling.
16. Let’s compare your sample statistics to the population parameter.
a. How many and what proportion of students in your class obtained a sample average
word length larger than the population average (4.29 letters)?
June 27, 2014
MAA PREP workshop
53