A sample of 250 students who were taking online courses were asked to describe their overall...
A sample of 250 students who were taking online courses were
asked to describe their overall impression of online learning on a
scale of 1-7 with 7 representing the most favorable impression. The
average score was 4.98 and the standard deviation was 0.87.
Construct a 90% confidence interval for the mean score.
Round your final answers to 3 decimal
places.
The 90% confidence interval for the mean score is: ( , )
Homework Answers
Add Answer to:
A sample of 250 students who were taking online courses were
asked to describe their overall...
Question 8 of 18 (1 point) Attempt 1 of Unlimited View question in a popur! 72...
Question 8 of 18 (1 point) Attempt 1 of Unlimited View question in a popur! 72 Section Exerci Online courses: A sample of 269 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.77, and the standard deviation was 0.98. (a) Construct a 90% confidence interval for the mean score. (b) Assume that the mean score for...
Question 7 of 22 (1 point) Attempt 1 of Unlimited View question in a pour 82...
Question 7 of 22 (1 point) Attempt 1 of Unlimited View question in a pour 82 Section Exercise 21 (cale) Online courses: A sample of 265 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.61, and the standard deviation was 0.94. (a) Construct a 99.5% confidence interval for the mean score. (b) Assume that the mean...
What proportion of JMU students like online courses? To estimate this, a random sample of 200...
What proportion of JMU students like online courses? To estimate this, a random sample of 200 students was taken and found that 50 of them like online courses. (1) Are the assumptions for constructing a confidence interval for the population proportion satisfied? Explain.(2) Construct a 99% confidence interval for the population proportion of JMU students who like online courses.(3) What is the margin of error in (2) ?______________(4) Interpret the 99% confidence interval.
A sample of 31 students was randomly selected from a large group taking a certain calculus...
A sample of 31 students was randomly selected from a large group taking a certain calculus test. the mean score for the students in the sample was 80 that s=5.5, a)construct a 99% confidence interval foe the mean score ,μ, of all students taking the test (round final answer to first decimal place) b) construct a 99% confidence interval for the mean score ,μ, of all students taking the test when the sample size is increased to 101 students (round...
A random sample of students taking statistics was asked their GPA. The mean was 3.25 with...
A random sample of students taking statistics was asked their GPA. The mean was 3.25 with a standard deviation of 0.503. Find a confidence interval for the population mean.
Two researchers conducted a study in which two groups of students were asked to answer 42...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 24 with a standard deviation...
Two researchers conducted a study in which two groups of students were asked to answer 42...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 25.3 with a standard deviation...
Question 1. Thirty graduate students were asked how many credit hours they were taking in the...
Question 1. Thirty graduate students were asked how many credit hours they were taking in the current quarter. Download the available data: Calculate the mean, median, standard deviation, variance, and range for this sample using Excel. Write a sentence explaining what each measure means. What is the standard error of the mean based on the data? What would be the best point estimate for the population credit hours? (“Population” refers to all graduate students’ credit hours in the universe.) What...
Two researchers conducted a study in which two groups of students were asked to answer 42...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The studere in group were asked to spend 5 minutes thinking out what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 232 with a standard deviation of...
50 part-time students were asked how many courses they were taking this term. The incomplete) results...
50 part-time students were asked how many courses they were taking this term. The incomplete) results are shown below: # of Courses Frequency Relative Frequency Cumulative Frequency 20 0.4 a. Complete the table. b. What percent of students take exactly one course?
Question 8 of 18 (1 point) Attempt 1 of Unlimited View question in a popur! 72 Section Exerci Online courses: A sample of 269 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.77, and the standard deviation was 0.98. (a) Construct a 90% confidence interval for the mean score. (b) Assume that the mean score for...
Question 7 of 22 (1 point) Attempt 1 of Unlimited View question in a pour 82 Section Exercise 21 (cale) Online courses: A sample of 265 students who were taking online courses were asked to describe their overall impression of online learning on a scale of 1-7, with 7 representing the most favorable impression. The average score was 5.61, and the standard deviation was 0.94. (a) Construct a 99.5% confidence interval for the mean score. (b) Assume that the mean...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 24 with a standard deviation...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The students in group 1 were asked to spend 5 minutes thinking about what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 25.3 with a standard deviation...
Two researchers conducted a study in which two groups of students were asked to answer 42 trivia questions from a board game. The studere in group were asked to spend 5 minutes thinking out what it would mean to be a professor, while the students in group 2 were asked to think about soccer hooligans. These pretest thoughts are a form of priming. The 200 students in group 1 had a mean score of 232 with a standard deviation of...
50 part-time students were asked how many courses they were taking this term. The incomplete) results are shown below: # of Courses Frequency Relative Frequency Cumulative Frequency 20 0.4 a. Complete the table. b. What percent of students take exactly one course?
Most questions answered within 3 hours.
-
Write a C++ program that will convert distance measurements from
miles to kilometers. Specifically, the program...
asked 2 minutes ago -
Given the following stresses (in MP a); in each case:
(a) Find the principal stresses σ1;...
asked 7 minutes ago -
You are one of the first engineers hired into the
manufacturing engineering department at a brand...
asked 12 minutes ago -
Suppose car models A, B, and C are popular among drivers.
Suppose 12% of the drivers...
asked 29 minutes ago -
write a program that finds the number of zeros in an 8-bit data
item using assembly...
asked 30 minutes ago -
Which statement is always true: The total energy of a closed
system...
A) is always equally...
asked 43 minutes ago -
find the critical value associated with a right sided hypothesis of
the mean using a sample...
asked 2 hours ago -
Which of the following statements is true with respect to a
simple linear regression model?
a....
asked 3 hours ago -
The energy required to remove an electron from a surface of a
solid element is called...
asked 4 hours ago -
How would you train your employees to avoid risks of using
mobile devices?
asked 5 hours ago -
Assume Kw = 1.01 ✕ 10−14
For pure water, we can calculate [H3O+ ] = [OH...
asked 6 hours ago -
Suppose that on a temperature scale X, water boils at 203.0°X
and freezes at -105.7°X. What...
asked 6 hours ago