Question

Why
are there many t distributions as opposed to only one normal
distribution?

Answer #1

How is the
t-distribution similar to the standard normal
z-distribution?
Multiple Choice
Both are skewed
distributions.
Both are continuous
distributions.
Both are discrete
distributions.
Both are families of
distributions.

1. Why is normal distribution important for many application and
actually should we be dependent of normal distribution or not?
Should we be independent? Combine this approach with parametric
distributions.
PLEASE ANSWER THİS QUESTİON

1. For a t distribution with k degrees of freedom,
(t(k)), what does this distribution approach as k increases?
Why?
2. How do t distributions help one to analyze samples
from normal distributions?

In which of the following situations would you use a one-tailed
test (as opposed to a twotailed test)?
A. When you are testing only one group of people, rather than
two
B. When there is a clear reason to predict a result in one
specific direction
C. When you are using the normal distribution instead of the T
distribution
D. When you want to avoid a Type 1 error

The
Standard Normal Distribution is going to be a major focus focus
through much of the remainder of this course. Why do you think we
will focus so much on this distribution (as opposed to the Uniform,
Binomial, Poisson, and other distributions). Consider the "real
world" when thinking about your response.

The normal distribution is a family of distributions that is
often used to model operational processes. Based on your readings
for this module, give one example, different from those supplied in
the overview, of how the normal distribution can be used in an
operations or production environment. This example may be from your
own experience. Be sure to explain how the normal distribution is
used in the example you provide.

The normal distribution is a family of distributions that is
often used to model operational processes. Based on your readings
for this module, give one example, different from those supplied in
the overview, of how the normal distribution can be used in an
operations or production environment. This example may be from your
own experience. Be sure to explain how the normal distribution is
used in the example you provide.
** Please show graph of the example**

What is the decision to use the Z distribution vs the t
distributions as the frequency distributions for hypothesis testing
based upon?

Determine which of the following binomial distributions has
approximately normal distribution

Consider the following statements concerning the normal
distribution.
(i) The normal distribution is symmetric and unimodal.
(ii) The normal distribution is useful for approximating some
discrete distributions.
(iii) Only knowledge of the mean and variance is required to
completely specify a normal distribution.
A.
Only (i) and (ii) are true.
B.
All of (i), (ii) and (iii) are true.
C.
Only (i) is true.
D.
Only (i) and (iii) are true.

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