Question
In: Statistics and Probability
The council of higher education wants to compare the percentage of students that score A in...
The council of higher education wants to compare the percentage of students that score A in two universities. In a random sample of 50 students from university one, 16 received a grade of A; and in a random sample of 40 students from university two, 8 received a grade of A. The 95% confidence interval for the difference in the proportion of students who received a grade of A is:
a. -0.0638 to 0.3038
b. -0.0691 to 0.2983
c. 0.0365 to 0.04302
d. -0.0591 to 0.2991
Solutions
orchestra answered 2 years agoRelated Solutions
the council of higher education wants to compare the percentage of students that score A in...
the council of higher education wants to compare the percentage
of students that score A in two universities. in a random sample of
100 students from university one, 80 received a grade of A; and in
a random sample of 160 students from university two, 120 received a
grade of A. the 95% confidence interval for the difference in
proportion of students who received a grade of A is ???
A history teacher believes that students in an afternoon class score higher than the students in...
A history teacher believes that students in an afternoon class
score higher than the students in a morning class. The results of a
special exam are shown below. Can the teacher conclude that the
afternoon students have a higher score? Use α = 0.01. Morning
Students Afternoon Students
n1 = 36 n2 = 41 x1= 83
x2 = 86 s1 = 5.8 s2 = 6.3
null hypothesis
and t statistic , p value
The percentage of students with a GPA of 3.0 or higher is 15%. Suppose the random...
The percentage of students with a GPA of 3.0 or higher is 15%.
Suppose the random variable X represents the total number of
students with a GPA of 3.0 or higher in a random sample of 500
students.
a) Find the mean of X. (round to the nearest whole
number)
b) Find the standard deviation of X. (round to the nearest
whole number)
c) Determine the shape of the distribution for X. (letter
only)
A) skewed-left, since p > .5...
A youth and money survey, sponsored by the american savings education council talked to 1,000 students...
A youth and money survey, sponsored by the american savings
education council talked to 1,000 students about their personal
finance, ages 16-22. The survey found that 33% of students in this
age group have their own credit card. if a sub sample of 100
students is taken from this survey what is the probability that 40
or less will have their own credit card?
A.) Using the normal approximation for the binomial solve this
problem, show all of your work...
4) The Chronicle of Higher Education (2009-2010 issue) published the accompanying data on the percentage of...
4) The Chronicle of Higher Education (2009-2010 issue) published
the accompanying data on the percentage of the population with a
bachelor’s or higher degree in 2007 foreach of the 13 provinces or
territories of Canada.
21 27 26 19 30 35 35 26 47 26 39 29 22
(a) Calculate these numerical summaries:
The median:
The interquartile range:
(b) Construct a box plot for these data.
3. A university wants to estimate the percentage of their students who are the first in...
3. A university wants to estimate the percentage of their
students who are the first in their families to go to college.
There are 40,000 enrolled students. For each part, describe how the
university might collect data using the given sampling method
a. Cluster sample
b. Simple random sample
c. Systematic sample
d. Stratified sample
Minorities in Higher Education You are a social psychologist interested in the adjustment of international students...
Minorities in Higher Education
You are a social psychologist
interested in the adjustment of international students who go to
school at American universities. You decide to examine whether
there are differences in scores on the Acceptability by Others
Scale (AOS). The AOS is a scale that ranges from 1 to 20 (1 =
feeling completely isolated – 20 feeling completely accepted) that
measures acceptance within the college community. You collect
scores on the AOS from a sample of international students...
Minorities in Higher Education You are a social psychologist interested in the adjustment of international students...
Minorities in Higher Education
You are a social psychologist
interested in the adjustment of international students who go to
school at American universities. You decide to examine whether
there are differences in scores on the Acceptability by Others
Scale (AOS). The AOS is a scale that ranges from 1 to 20 (1 =
feeling completely isolated – 20 feeling completely accepted) that
measures acceptance within the college community. You collect
scores on the AOS from a sample of international students...
Literature review on '"Redefine the role of Higher Education Institutions in ensuring students success"
Literature review on '"Redefine the
role of Higher Education Institutions in ensuring students
success"
disadvantages of private higher education and public higher education for Malaysian Economy.
disadvantages of private higher education and public higher
education for Malaysian Economy.
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