Question

Explain a real-world example of when a hypothesis test could be used. The example can use real data or data that you make up, such as values for the mean, standard deviation, and sample size. Be sure to note if the standard deviation is from the population or the sample.

Answer #1

describe a real-world example of when a hypothesis test could be
used and also include a numerical example. The example can use real
data or data that you make up such as values for the mean, standard
deviation, and sample size.

Provide a real world example of a Type I error.
2. Explain what a critical value is, and explain how
it is used to test a hypothesis.
3. Explain what a p-value is, and explain how it is
used to test a hypothesis.
4. How do we decide whether to use a z test or a t
test when testing a hypothesis about a population mean?

1. Provide a real world example of a Type I error. 2. Explain
what a critical value is, and explain how it is used to test a
hypothesis. 3. Explain what a p-value is, and explain how it is
used to test a hypothesis. 4. How do we decide whether to use a z
test or a t test when testing a hypothesis about a population
mean?

Name an example of a real-world data set, not yet mentioned in
the course, where you would typically expect to see a normal
distribution. Be sure to describe what the labels would be for the
horizontal and vertical axis of the display. Then explain why you
would expect a normal distribution. What range of data values would
you expect to represent 1 standard deviation from the mean?

Make up a real-world scenario that describes
disintermediation!
Do not simply describe it,,,give a real-world example! You can
make one up if you care to!

1- When conducting a hypothesis test, one may
select to use α = 0.05. Explain what this means,
2- Provide an example to support your answer.
Make sure you indicate the null hypothesis and the alternative
hypothesis for your example.
Ho:
Ha:

The easiest way to affect the outcome of a hypothesis test is
to increase sample size. Similarly, true results may sometimes be
missed because a sufficient sample was not used in the research.
Perform the hypothesis test on these data with a sample of 37. Then
perform the same hypothesis test but assume that the mean was based
on only 4 infants.
The easiest way to increase statistical power is to increase
sample size. Similarly, statistical power decreases with a...

Find an example of a
data sample in the real world (newspaper/ journal/ online) and
explain the sample you found. Please tell us if it was qualitative
data or quantitative data.

Give an example of a problem where it would be appropriate to
use a statistical hypothesis test for the population mean. Explain
what you can determine with such test and how confident you are in
your conclusion.
Note : Question is related to lean six sigma

What are real-world examples of when to use the one-sample
z-test?

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