Question

In your own words, tell me the difference between using the z test and the t test for testing the difference between 2 means.

Answer #1

2. A T-test is appropriate when you are handling small samples (n
< 30) while a Z-test is appropriate when you are handling
moderate to large samples (n > 30).

3. T-test is more adaptable than Z-test since Z-test will often
require certain conditions to be reliable. Additionally, T-test has
many methods that will suit any need.

4. T-tests are more commonly used than Z-tests.

5. Z-tests are preferred than T-tests when standard deviations are
known.

In your own words, explain the difference between a t statistic
and a z score and include how the t distribution is related to the
normal distribution.

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Define type 1error
What is the difference between t- Test, and z test

What is the difference between a t test of independent means and
a t test of dependent means? Provide examples of when you would use
each type of t test.

April 2019
In your own words, describe the difference between Among Group
Variation and Within Group Variation. Discuss how you would
evaluate the variation and other methods to ensure that the data is
appropriate to use for the test. Illustrate using a specific
example.
(150 - 200 words, please)

Describe in your own words the difference between governmental
funds and enterprise funds.

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