If 25% of all students at a local university work full-time, what is the probability that a sample of 800 students would have at most 190 working full-time?
If 25% of all students at a local university work full-time, what is the probability that...
1. The University of Canterbury wants information on whether full-time undergraduate students at Canterbury use certain facilities (e.g. gym, library). (a) Define the target population in terms of how it differs from the general population. (b) The proposed method to collect the data is to place students at three places on campus and ask everyone passing by to fill in the questionnaire. It is intended to do this between 12 and 1pm on the Monday to Friday of the last...
4. Cluster sampling: The registrar of a university with a population of N=4000 full-time students is asked by the president to conduct a survey to measure satisfaction with the quality of life on campus. The registrar intends to take a probability sample of n=200 students and project the results from the sample to the entire population. Suppose that each of the n=4000 registered full-time students lived in one of the 10 campus dormitories. Each dormitory can accommodate 400 students. It...
Suppose the average number of hours full-time college students work per week is 25 with a standard deviation of 6 hours.. Random samples of 40 full time students are drawn. Find the mean and the standard deviation of the sample mean
4. In a local university, 10% of the students live in the dormitories. A random sample of 100 students is selected for a particular study a) What is the probability that the sample proportion (the proportion living in the dormitories) is between 0.172 and 0.178? b) What is the probability that the sample proportion is greater than 0.025?
According to a college survey, 22% ofall students work full time. a) Find the mean and standard deviation for the random variable X, representing the number of students who work full time in sample of size 16. Find the probability that from a random sample of size 10, three do not work full time. b)
Question 02: John Jay is a full – time student at a local university. He wants to decide whether he should attend a four- week summer school session, where tuition is $325, or take a break and work full time at a local delicatessen, where he could make as much as $175 a week. How much would going to the summer school cost him from a decision – making standpoint? Compute the opportunity cost in this case. [Max. Marks =...
In a local university, 66% of the students live in the dormitories. A random sample of 70 students is selected for a particular study. We know that the standard error of the proportion is 0.0566. Find the probability that the sample proportion (the proportion living in the dormitories) is between 0.64 and 0.67.
In a local university, 66% of the students live in the dormitories. A random sample of 80 students is selected for a particular study. We know that the standard error of the proportion is 0.0530. Find the probability that the sample proportion (the proportion living in the dormitories) is between 0.65 and 0.68.
There are 10,000 students at the University of Tennessee at Chattanooga. The average age of all the students is 25 years with a standard deviation of 5 years. A random sample of 49 students is selected. What is the probability that the sample mean will be between 24 and 27 years?
Suppose it is known that 19% of students work full-time. Suppose it is also known that 60% of the population work full-time and that 17% of the population are students. If a randomly chosen member of the population is a full-time worker, what is the probability that he/she is a student?