Question
In: Statistics and Probability
In a study among college students, participants (ages 18-28 years old) completed a self-report questionnaire about...
In a study among college students, participants (ages 18-28 years old) completed a self-report questionnaire about their self-esteem. What statistical analysis would you use to see if there was a relationship between the two variables listed?
Group of answer choices:
t-test
ANOVA
Regression
Correlation
Solutions
orchestra answered 2 years agoRelated Solutions
A recent news article stated that only 17% of college students between the ages of 18 to 24 years old voted in the last presidential election.
A recent news article stated that only 17% of college
students between the ages of 18 to 24 years old voted in the last
presidential election.5. Assuming the voting rate stays the same, what is the
probability that from a random sample of 500 college students from
a local university, at least 20% will vote in the next presidential
election?
among 3000 college students 13% are over 21 years old what is the probability that out...
among 3000 college students 13% are over 21 years old what is
the probability that out of a sample of 550 students at least 15%
are 21 years old
1. A questionnaire about study habits was given to a random sample of students taking a...
1. A questionnaire about study habits was given to a
random sample of students taking a
large introductory statistics class. Students were asked if they
studied most nights in a week: yes or
no. The results are that the sample proportion of students who
answered “yes” (?̂) was 0.4.
Consider the same scenario as in Problem 1.
a) Calculate a confidence interval for sample size n = 1000, ?̂=
0.4, and the following confidence
levels: 80%, 90%, and 99%. You...
Among U.S. residents ages 65 years and older, 28% had diabetes in 2012. A special glucose...
Among U.S. residents ages 65 years and older, 28% had diabetes
in 2012. A special glucose test correctly diagnoses the presence of
diabetes 97% of the time and correctly diagnoses its absence 95% of
the time. (hint: a tree diagram is helpful). Find the probability
that a person whose test results are negative actually has
diabetes. In other words, given that a person had a negative test
result, what is the chance they actually have diabetes? Ch 3.7
A study involving is conducted among the students on a college campus. the stress score follow...
A study involving is conducted among the students on a college
campus. the stress score follow a uniform distribution with the
lowest stress score equal to one and the highest to five. using a
sample of 75 students. Find the 95th percentile for the mean stress
score for the 75 students.
The average age of students at the University of Houston – Downtown is about 28 years...
The average age of students at the University of Houston –
Downtown is about 28 years old. The president of the university
believes that the age of full-time students attending classes
during the day is lower that the average of all students. Test this
hypothesis. Be sure to show all five steps.
Show your Excel file ONCE per group with all the names of your
team members included.
Age
14-21: 23%
22-24: 23%
25-30: 27%
31-35: 12%
36-50: 13%
Over...
Sleep – College Students: Suppose you perform a study about the hours of sleep that college...
Sleep – College Students: Suppose you perform a
study about the hours of sleep that college students get. You know
that for all people, the average is about 7 hours. You randomly
select 50 college students and survey them on their sleep habits.
From this sample, the mean number of hours of sleep is found to be
6.2 hours with a standard deviation of 0.86hours. We want to
construct a 95% confidence interval for the mean nightly hours of
sleep...
Sleep – College Students: Suppose you perform a study about the hours of sleep that college...
Sleep – College Students: Suppose you perform a
study about the hours of sleep that college students get. You know
that for all people, the average is 7.0 hours with a standard
deviation of 1.3 hours. You randomly select 50 college students and
survey them on their sleep habits. From this sample, the mean
number of hours of sleep is found to be 6.40 hours. Assume the
population standard deviation for college students is the same as
for all people....
Sleep – College Students: Suppose you perform a study about the hours of sleep that college...
Sleep – College Students: Suppose you perform a
study about the hours of sleep that college students get. You know
that for all people, the average is about 7 hours. You randomly
select 45 college students and survey them on their sleep habits.
From this sample, the mean number of hours of sleep is found to be
6.2 hours with a standard deviation of 0.97 hours. We want to
construct a 95% confidence interval for the mean nightly hours of...
Sleep – College Students: Suppose you perform a study about the hours of sleep that college...
Sleep – College Students: Suppose you perform a
study about the hours of sleep that college students get. You know
that for all people, the average is about 7 hours. You randomly
select 35 college students and survey them on their sleep habits.
From this sample, the mean number of hours of sleep is found to be
6.1 hours with a standard deviation of 0.97 hours. You want to
construct a 99% confidence interval for the mean nightly hours of...
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