Confidence Interval of Difference Questions

3. A researcher was interested in understanding how the age of onset (i.e., age at which juveniles were
comparison between Hispanic and White juveniles. She performed statistical analysis of the data she
arrested for the offense the very first time) would vary by ethnicity. Specifically, she would like to make a
collected and obtained the following results.
Race and Ethnicity
Std. Deviation
Std. Error Mean
Levene’s Test
for Equality of
t-Test for Equality of Means
95% Confidence Interval of
the Difference
Lower Upper
Std. Error
Sig. (2-
Equal variances
Equal variances
not assumed
Using information from the above two tables, answer the following questions.
(1.5 points) What level of a has been used in this hypothesis testing? Explain how a was set and
obtained from the above tables.
b. (2 points) Is the assumption of equal variances violated? Identify the p value from Levene’s test
and use it to explain why this assumption is violated or why it is not violated.
c. (1.5 points) Based on information from the above two tables, what type of t-test has been used
for this hypothesis testing? Why?
.d. (2 points) Based on the scenario, use complete sentences to state the null (Ho) and alternative
(Hi) hypotheses in a two-tailed t-test?
Page 3 of 4
e. (1 point) What is the mean difference in Cell A?
f. (2 points) What is the calculated t value with equal variances assumed in Cell B? What is the
calculated t value with equal variances not assumed in Cell C? Identify the formula and provide
all calculations below.
g. (1 point) Calculate the degrees of freedom with equal variances assumed in Cell D. Provide your
h. (2 points) Which calculated t value in the second table is appropriate to be used for the current t-
test. Clearly explain the answer based on the result of Levene’s test.
i. (2.5 points) Using the calculated t value in the row you have chosen for the t-test, find the critical
t, make a comparison between the calculated t and the critical t, and draw a conclusion on the
hypothesis. Clearly explain how you reach the conclusion based on t statistics.
is to be used based on the result of Levene’s test?
j. (1 point) There are two p values under the t-test for testing the equality of means. Which p value
k. (1.5 points) Based on the p value found in the preceding question, determine whether the null
hypothesis in Question 3d is rejected. Clearly explain how you reach the conclusion based on the
p value.

Don't use plagiarized sources. Get Your Custom Essay on
Confidence Interval of Difference Questions
Just from $13/Page
Order Essay
Achiever Essays
Calculate your paper price
Pages (550 words)
Approximate price: -

Why Work with Us

Top Quality and Well-Researched Papers

We always make sure that writers follow all your instructions precisely. You can choose your academic level: high school, college/university or professional, and we will assign a writer who has a respective degree.

Professional and Experienced Academic Writers

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Free Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document. You can do this yourself after logging into your personal account or by contacting our support.

Prompt Delivery and 100% Money-Back-Guarantee

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. In case you cannot provide us with more time, a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. Our editors carefully review all quotations in the text. We also promise maximum confidentiality in all of our services.

24/7 Customer Support

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:

How it works?

Follow these simple steps to get your paper done

Place your order

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Receive the final file

Once your paper is ready, we will email it to you.

Our Services

No need to work on your paper at night. Sleep tight, we will cover your back. We offer all kinds of writing services.


Essay Writing Service

No matter what kind of academic paper you need and how urgent you need it, you are welcome to choose your academic level and the type of your paper at an affordable price. We take care of all your paper needs and give a 24/7 customer care support system.


Admission Essays & Business Writing Help

An admission essay is an essay or other written statement by a candidate, often a potential student enrolling in a college, university, or graduate school. You can be rest assurred that through our service we will write the best admission essay for you.


Editing Support

Our academic writers and editors make the necessary changes to your paper so that it is polished. We also format your document by correctly quoting the sources and creating reference lists in the formats APA, Harvard, MLA, Chicago / Turabian.


Revision Support

If you think your paper could be improved, you can request a review. In this case, your paper will be checked by the writer or assigned to an editor. You can use this option as many times as you see fit. This is free because we want you to be completely satisfied with the service offered.

Live Chat+1(978) 822-0999EmailWhatsApp

Order your essay today and save 20% with the discount code RESEARCH

slot online
seoartvin escortizmir escortelazığ escortbacklink satışbacklink saleseskişehir oto kurtarıcıeskişehir oto kurtarıcıoto çekicibacklink satışbacklink satışıbacklink satışbacklink