Exam (elaborations)
Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.
- Course
- Institution
Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.
[Show more]
Seller
Follow
maggieobita
Reviews received
Content preview
Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.Score 16/24
You passed this Milestone
16 questions were answered correctly.
8
1
UquNestiIonTs we5re a—nswerMed
in c
I LorrEectSly.TONE 5
Which of the following is an example of a parameter?
Half of the receipts at the coffee shop include web address for giving feedback.
9047 out of 531,310 citizens voted in the special election for city council.
3.5% of the restaurant goers are given a survey to fill out.
All of the members of the community watch group gave their availability to volunteer over the summer.
RATIONALE
Recall a parameter comes from the entire set of interest, the
population. Since they are looking at all members of a community here, their availability to volunteer would be an
example of a parameter.
CONCEPT
Sample Statistics and Population Parameters
,Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.
I need help with this question
2
A school is gathering some data on its sports teams because it was believed that the distribution of boys and girls
were evenly distributed across all the sports. This table lists the number of boys and girls participating in each
sport.
,Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.
Boys Girls
Tennis 18 30
Soccer 42 15
Swimming 12 18
Select the observed and expected frequencies for the boys participating in soccer.
Observed: 42
Expected: 22.5
Observed: 42
Expected: 24
Observed: 57
Expected: 24
Observed: 57
Expected: 22.5
RATIONALE
If we simply go to the chart then we can directly see the observed frequency for boys participating in soccer is 42.
To find the expected frequency, we need to find the number of
occurrences if the null hypothesis is true, which in this case, was that the three options are equally likely, or if the
three options were all evenly distributed.
First, add up all the options in the boys column:
If each of these three options were evenly distributed among the 72 boys, we would need to divide the total evenly
between the three options:
, Sophia Statistics Unit 5 Milestone, attempt score: 16/24., Latest Summer 2023.
This means we would expect 24 boys to choose tennis, 24 boys to choose soccer, and 24 boys to choose
swimming.
CONCEPT
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 maggieobita. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $18.39. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now