Question

At a certain university, 40% of the students come from Orange County, 20% come from Los Angeles County, 20% come from another county in California, 10% come from another state, and 10% come from a different country. Zoe wants to see if the students in her class fit or do not fit this profile. She takes a sample: 100 come from Orange County, 35 come from Los Angeles County, 30 come from another county in California, 20 come from another state, and 15 come from another country. Please calculate the test statistic, state the critical value, and come to a conclusion concerning the make-up of the class. Let α = .05.

Answer #1

At a certain university, 40% of the students come from Orange
County, 20% come from Los Angeles County, 20% come from another
county in California, 10% come from another state, and 10% come
from a different country. Zoe wants to see if the students in her
class fit or do not fit this profile. She takes a sample: 100 come
from Orange County, 35 come from Los Angeles County, 30 come from
another county in California, 20 come from another...

At a certain university, 40% of the students come from Orange
County, 20% come from Los Angeles County, 20% come from another
county in California, 10% come from another state, and 10% come
from a different country. Zoe wants to see if the students in her
class fit or do not fit this profile. She takes a sample: 100 come
from Orange County, 35 come from Los Angeles County, 30 come from
another county in California, 20 come from another...

At UCR, 40% of the students come from Orange County, 20% come
from Los Angeles County, 20% come from another county in
California, 10% come from another state, and 10% come from a
different country. Kailey wants to see if the students in her class
fit or do not fit this profile. She takes a sample: 100 come from
Orange County, 35 come from Los Angeles County, 30 come from
another county in California, 20 come from another state, and...

A local university requires that all first-year students
complete a math course during first semester. This year the
university is evaluating a new online version of the course. A
random sample of n = 20 students is selected and the students are
placed in the online course. At the end of the semester, all
students take the same math exam. The average score for the sample
of n = 20 students is M = 85. For the general population of...

A local university requires that all first year students
complete a math course during first semester. This year the
university is evaluating a new online version of the course. A
random sample of n = 20 students is selected and the students are
placed in the online course. At the end of the semester, all
students take the same math exam. The average score for the sample
of n = 20 students is M = 85. For the general population...

A university also wants to determine if there are significant
differences in GPA among students from different majors. They
collect data on GPA for four different majors and find the
following results: Business Administration (M = 2.9; N = 60), Fine
Art (M = 3.3; N = 60), Nursing (M = 3.5; N = 60), and Psychology (M
= 3.6; N = 60). They also calculated the between-group and total
sum of squares (SSB = 19.8; SST = 303.0). Use...

Women athletes at the a certain university have a long-term
graduation rate of 67%. Over the past several years, a random
sample of 36 women athletes at the school showed that 23 eventually
graduated. Does this indicate that the population proportion of
women athletes who graduate from the university is now less than
67%? Use a 10% level of significance.
(a) What is the level of significance?
State the null and alternate hypotheses.
H0: p = 0.67; H1: p ≠...

A random sample of students from a commuter college were
surveyed and asked about their employment status. The results are
recorded in the table below. Test the claim that the frequencies
are evenly distributed throughout the categories. Use α = .05 .
# Hours per week 0-9 10-19 20-29 30-39 40+
Number of students 28 15 19 22 24
9) Express the claim in symbolic form.
Answer Choices
A) Independent
B) p0-9 > p10-19 > p20-29
> p30-39 > p40+...

PLEASE READ THE ARTICLES ATTACHED AND ANSWER THE
FOLLOWING QUESTION. THE ARTICLES ARE BOTH LISTED
PLEASE PROVIDE DETAILED EXPLANATIONS.
PLEASE WRITE ONE REFLECTION COMBINING BOTH
ARTICLES.
The purpose of the Article Reflection is to deepen your
engagement with the topic of Epidemiology. It will give you the
opportunity to reflect on the current real-life epidemiological
issues at hand and help to bring meaning to them.
ARTICLE 1:
A group of students knew they had covid-19. They hosted
a party over...

Q: Write one paragraph summary about this article.
Big oil and the environment
The truth about big oil and climate change
Even as concerns about global warming grow, energy firms
are planning to increase fossil-fuel production. None more than
ExxonMobil.
In america, the world’s largest economy and its second biggest
polluter, climate change is becoming hard to ignore. Extreme
weather has grown more frequent. In November wildfires scorched
California; last week Chicago was colder than parts of Mars.
Scientists are...

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