20% of all students in a university are graduates and 80%are undergraduate..the probability that graduate students is married is 0.50 and the probability that an undergraduate student is married is .10.one student is selected at random what is the probability that the student selected is married
20% of all students in a university are graduates and 80%are undergraduate..the probability that graduate students is married is 0.50 and the probability that an undergraduate student is married is .10.one student is selected at random what is the probabi
6. (5 Marks) A group of four undergraduate and five graduate students are available to fill certain student government posts. If four students are to be randomly selected from this group, a) Find the probability that exactly two undergraduates will be among the four chosen. (2 points) b) What is the probability that at least two graduate students be chosen? (3 points)
Monthly rent paid by undergraduates and graduate students. Undergraduate Student Rents (n = 10) 800 750 840 710 710 780 750 620 990 660 Graduate Student Rents (n = 12) 1,120 890 900 880 740 860 740 780 960 880 880 860 (a) Construct a 98 percent confidence interval for the difference of mean monthly rent paid by undergraduates and graduate students, using the assumption of unequal variances with Welch's formula for d.f. (Do not round the intermediate calculations. Round...
1. A researcher selected a random sample of 268 former students, 110 of whom were student-athletes, from a list of graduates of a large university. A total of 17% of the sample of student-athletes had earned graduate degrees, compared to 14% of the non-student-athletes. We want to know: Is this difference statistically significant at α = .01 for a two-tailed test? a) what is the t statistic b) what is our critical value of our test statistic? c) What is...
Description. A university calculates tuition based on student classifications. Resident undergraduate students (living in state) pay a set amount per credit for 12 or fewer credits and pay 75% of set amount per credit for all additional credits. Non-resident undergraduate students (living out of state) pay $5,000 plus 80% of the set amount for all credits taken. Graduate students pay $9,500 per semester regardless of the number of credits taken. Alumni returning to the university are allowed to audit a...
Problem Statement: Registrar’s Office. This registrar keeps a record of undergraduate students and graduate students. They want us to write an app that stores their students and displays them to the user. For each undergrad student, the app will show the name of the student, the student’s id, whether (true/false) the student is going to graduate school and the student’s high school. For each grad student, the app will show the name of the student, the student’s id, the class...
One hundred and ninety undergraduate students were randomly selected from a university that has 47,000 students in total. Systolic blood pressure was tested on the 190 students. The sample standard deviation is 11.0 mmHg. What is the estimated standard error of the sample mean? Group of answer choices 0.08 0.80 1.08 1.80
85% of all graduate students in the music department at a large university are women. If a sample of 100 music graduate students is selected at random, how many women do you expect to see in that sample? 55 85 75 15
Suppose a university wishes to estimate the average weight of their undergraduate male students. A random sample of 200 undergraduate male students at this university are sampled. It is found that the sample mean weight is 83.3 kg, with a corresponding 95% confidence interval for mu of (81.3, 85.3). Of the following options, which one is the most appropriate interpretation of that interval? We can be 95% confident that the sample mean weight of the 200 undergraduate male students in...
You would like to know what proportion of Canadian undergraduate university students check professor ratings before they register for courses. You survey students who are currently enrolled in undergraduate programs at 7 randomly selected Canadian universities and obtain information from 1778 students (254 students were randomly selected from each of the 7 universities you surveyed). What is the population in this study? O A. All students who are currently enrolled in an undergraduate program at a Canadian university. B. All...
Question 1 (Normal Approximation). Suppose that 25% of Rackham graduate students are Graduate Student Instructor (GSI). Now, select a random sample of 50 Rackham graduate students. Let X be the number of Rackham graduate students in the random sample who are GSI. (a) What is the distribution of X? (b) Approximate X using a normal random variable Y and provide the mean and variance of Y. Explain all the required conditions for this approximation (c) What is the approximate probability...