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Over the years it has been known that 60% of students who take the JOB apptitute...
From the college records, It was always known that 10% of the students who take Eng....
From the college records, It was always known that 10% of the students who take Eng. 304 course would receive a letter grade of an "A", among the lo sections of the same course which usually total to 350 students, . Using the normal approximation concept, please find the following: 1. Probability that at least 40 students will receive A's? 2. Probability that at most 300 students will receive grades other than A's? 3. Expected number of students and the...
It is known from past experience that for students who studied AMA1110 for at least 100...
It is known from past experience that for students who studied AMA1110 for at least 100 hours, their chance of passing the exam is 0.95, while for those who studied AMA1110 for less than 100 hours, their chance of passing the exam is 0.1. It is also known that the passing rate is 90%. If a student is randomly chosen and is found to have passed, what is the probability that he/she has studied for less than 100 hours? [8...
The following information corresponds to students who Took Test 4. The mean score was 59.98 points...
The following information corresponds to students who Took Test 4. The mean score was 59.98 points and the standard deviation was 13.18. Assume scores for Test 4 are normally distributed. If 10 students are randomly selected, find the probability that the mean of their test score is greater than 56.
Question 7 ment a universities, which is going to be held in Fall 2019. For this, students who ar...
Question 7 ment a universities, which is going to be held in Fall 2019. For this, students who are interested to be a part of the team should take a test next weekend at the Recreation Center. Based on information from past, the coach, on average, is able to have 5 students tested in 20 minutes. 100 students have registered to take the test. One of the tests will be in the morning from 8:30 am to 11:30 am and...
A researcher has administered an optimism test for graduating college students for the past several years....
A researcher has administered an optimism test for graduating college students for the past several years. In the current yearthe researcher obtains a sample of n = 36 people and asks each person to complete the optimism test (higher scores indicate higher levels of optimism about the future). The scores from the sample produce a mean of M=24wit4ss=2835 . Over the past few years the optimism test is known to have a mean of w = 20 Do the sample...
Almost all medical schools in the United States require students to take the Medical College Admission...
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495...
Q12. The following frequency distribution and cumulative frequency distribution represent students grades in a quiz of...
Q12. The following frequency distribution and cumulative frequency distribution represent students grades in a quiz of 10 points. Answer the following Questions: The numter of students who took the quiz. Percent of students who failed the test (less than or equal 60% of the grade) is- Percent of students who passed with better than B grade (better than 80% of the grade) is The majority of students made a grade of FREQUENCY DISTRIBUTION OF STUDENTS GRADES OUT OF 10 2...
It has been seen that the mean grade point average for students who live on campus...
It has been seen that the mean grade point average for students who live on campus is 2.75 with standard deviation of 0.43, while that of students who live off campus is 2.6 with standard deviation of 0.68. 7 sophomores are randomly selected from campus dormitories at a college and 20 sophomores are randomly selected from students who live off campus. The mean grade point averages of the two groups are compared. The expected difference in the sample grade point...
Are college students who take a freshman orientation course more likely to stay in college than...
Are college students who take a freshman orientation course more likely to stay in college than those who do not take such a course? An article reported that out of 100 randomly selected college students who participated in an orientation course 57 returned for a second year. Of the 95 randomly selected students who did not take the orientation course, 40 returned for a second year. Test the claim that a larger proportion of college students return for a second...
The scores of individual students on the American College Testing (ACT) composite college entrance examination have...
The scores of individual students on the American College Testing (ACT) composite college entrance examination have a normal distribution with mean 17.3 and standard deviation 5.4. (a) What is the probability that a single student randomly chosen from all those taking the test scores 25 or higher? (b) Now take an SRS of 67 students who took the test. What are the mean and standard deviation of the average (sample mean) score for the 67 students? μ = σ =...
From the college records, It was always known that 10% of the students who take Eng. 304 course would receive a letter grade of an "A", among the lo sections of the same course which usually total to 350 students, . Using the normal approximation concept, please find the following: 1. Probability that at least 40 students will receive A's? 2. Probability that at most 300 students will receive grades other than A's? 3. Expected number of students and the...
Question 7 ment a universities, which is going to be held in Fall 2019. For this, students who are interested to be a part of the team should take a test next weekend at the Recreation Center. Based on information from past, the coach, on average, is able to have 5 students tested in 20 minutes. 100 students have registered to take the test. One of the tests will be in the morning from 8:30 am to 11:30 am and...
Q12. The following frequency distribution and cumulative frequency distribution represent students grades in a quiz of 10 points. Answer the following Questions: The numter of students who took the quiz. Percent of students who failed the test (less than or equal 60% of the grade) is- Percent of students who passed with better than B grade (better than 80% of the grade) is The majority of students made a grade of FREQUENCY DISTRIBUTION OF STUDENTS GRADES OUT OF 10 2...
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