100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Sophia Learning STAT1001: Introduction to Statistics UNIT 5 — MILESTONE 5 Answered Latest Fall 2024/25. $18.04   Add to cart

Exam (elaborations)

Sophia Learning STAT1001: Introduction to Statistics UNIT 5 — MILESTONE 5 Answered Latest Fall 2024/25.

 5 views  0 purchase
  • Course
  • STAT1001: Introduction to Statistics 2024
  • Institution
  • STAT1001: Introduction To Statistics 2024

Sophia Learning STAT1001: Introduction to Statistics UNIT 5 — MILESTONE 5 Answered Latest Fall 2024/25 attempt for this quiz 91%

Preview 4 out of 41  pages

  • September 12, 2024
  • 41
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • STAT1001: Introduction to Statistics 2024
  • STAT1001: Introduction to Statistics 2024
avatar-seller
Topscorer
UNIT 5 — MILESTONE 5

21/23




21/23  that's 91% RETAKE



 21 questions were answered correctly.
2 questions were answered incorrectly.



1 


The table below shows the results of a
customer satisfaction survey at a particular
restaurant broken down by males and females.


Male Female

Extremely Satisfied 25 7

Satisfied 21 13

Neutral 13 16

Dissatisfied 9 14

Extremely Dissatisfied 2 5


Assuming all 5 choices are equally likely, select
the observed and expected frequency for male



https://app.sophia.org/spcc/introduction-to-statistics-2/milestone_take_feedbacks/33780735 6/13/24, 1 12 PM
Page 1 of 41




:

, customers that are dissatisfied.



Observed: 9

 #
Expected: 14



Observed: 9


Expected: 25



Observed: 9


Expected: 12.5



Observed: 14


Expected: 9




RATIONALE

If we simply go to the chart then we can
directly see the observed frequency for male
customers who are dissatisfied is 9.

To find the expected frequency, we need to
find the number of
occurrences if the null hypothesis is true,



https://app.sophia.org/spcc/introduction-to-statistics-2/milestone_take_feedbacks/33780735 6/13/24, 1 12 PM
Page 2 of 41




:

, which in this case, was that the five options
are equally likely, or if the five options were all
evenly distributed.

First, add up all the options in the Male
column:




If each of these five options were evenly
distributed among the 70 males, we would
need to divide the total evenly between the
five options:




This means we would expect 14 men to be
extremely satisfied, satisfied, neutral,
dissatisfied, and extremely dissatisfied.


CONCEPT
→ Chi-Square Statistic

Report an issue with this question




2 


Which of the following assumptions for a two-
way ANOVA is FALSE?




https://app.sophia.org/spcc/introduction-to-statistics-2/milestone_take_feedbacks/33780735 6/13/24, 1 12 PM
Page 3 of 41




:

, The groups must
have the same

sample size.



The samples must be
 # dependent.



The variances of the
populations must be

equal.



The sample
populations must be
normally or

approximately
normally distributed.




RATIONALE

Inside of the one-way ANOVA we assume that
we take an independent and identically
distributed sample. So we don't assume
dependence.


CONCEPT
→ One-Way ANOVA/Two-Way ANOVA



https://app.sophia.org/spcc/introduction-to-statistics-2/milestone_take_feedbacks/33780735 6/13/24, 1 12 PM
Page 4 of 41




:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Topscorer. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $18.04. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

67866 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$18.04
  • (0)
  Add to cart