There are 10,000 students at the University of Tennessee at Chattanooga. The average age of all...
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?
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There are 10,000 students at the University of Tennessee at
Chattanooga. The average age of all...
5. The ticket sales for events held at the new civic center are believed to be...
5. The ticket sales for events held at the new civic center are believed to be normally distributed with a mean of 12,000 and a standard deviation of 1,000. a. What is the probability of selling more than 10,000 tickets? b. What is the probability of selling between 9,500 and 11.000 tickets? c. What is the probability of selling more than 13,500 tickets? 6. There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a normal distribution. Six of these students are international students What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. What is the probability that if ONE student is selected at random, he/she...
Answers with solution and brief explanation please. Thanks a lot, appreciate it. 6. Aimple random sample...
Answers with solution and brief explanation please. Thanks a lot,
appreciate it.
6. Aimple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obtained. 12 18 19 20 21 A point estimate of the mean is a. 400 b. 18 c. 20 d. 10 7. a, b. As the sample size increases, the variability among the sample means increases decreases c, remains the same d. depends upon the specific population being...
We assume that the ages of university students are normally distributed. The average age of UAGM...
We assume that the ages of university students are normally distributed. The average age of UAGM students is 26 years with a standard deviation of 3 years. A student is selected at random. What is the probability that you are under 23? What is the probability that you are over 32 years old? What is the probability that he is between 23 and 32 years old?
7. A group of university students are interested in comparing the average age of cars owned...
7. A group of university students are interested in comparing the average age of cars owned by students and the average age of cars owned by faculty. They randomly selected 25 cars that are own by students and 20 cars that are owned by faculty. The average age and standard deviation obtained from the students' cars are 6.78 years and 5.21 years, respectively. The sample of faculty cars produced a mean and a standard deviation of 5.86 years, and 2.72....
7. At a large university, the mean age of students is 22.3 years, and standard deviation...
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
random sample of 64 students at a university showed an average age of 25 years and...
random sample of 64 students at a university showed an average age of 25 years and a sample standard deviation of 2 years. The 95% confidence interval for the true average age of all students in the university is ____________ Select one: a. 24.5 to 25.4 b. 20.5 to 29.5. c. 23.0 to 27.0 d. 20.0 to 30.0
QUESTION 8 There are 8,000 students at the School of Management, UT Dallas. The average age...
QUESTION 8 There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24 years with a standard deviation of 3 years. A random sample of 36 students is selected. Find a value, C, such that the probability of sample means being greater than C is 0.6808. 10 points QUESTION 9 There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24 years...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a narmal distribution. Six of these students are international students. What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. 2. What is the probability that if ONE student is selected at random,...
Please show how to solve using excel. At a large university, the mean age of the...
Please show how to solve using excel.
At a large university, the mean age of the students is 22.3 years, and the standard deviation is 4 years. A random sample of 64 students is drawn. What is the probability that the average age of these students is greater than 23 years? In another large university, 25% of the students are over 21 years of age. In a sample of 400 students, what is the probability that more than 110 of...
5. The ticket sales for events held at the new civic center are believed to be normally distributed with a mean of 12,000 and a standard deviation of 1,000. a. What is the probability of selling more than 10,000 tickets? b. What is the probability of selling between 9,500 and 11.000 tickets? c. What is the probability of selling more than 13,500 tickets? 6. There are 8,000 students at the University of Tennessee at Chattanooga. The average age of all...
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a normal distribution. Six of these students are international students What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. What is the probability that if ONE student is selected at random, he/she...
Answers with solution and brief explanation please. Thanks a lot,
appreciate it.
6. Aimple random sample of 5 observations from a population containing 400 elements was taken, and the following values were obtained. 12 18 19 20 21 A point estimate of the mean is a. 400 b. 18 c. 20 d. 10 7. a, b. As the sample size increases, the variability among the sample means increases decreases c, remains the same d. depends upon the specific population being...
7. A group of university students are interested in comparing the average age of cars owned by students and the average age of cars owned by faculty. They randomly selected 25 cars that are own by students and 20 cars that are owned by faculty. The average age and standard deviation obtained from the students' cars are 6.78 years and 5.21 years, respectively. The sample of faculty cars produced a mean and a standard deviation of 5.86 years, and 2.72....
7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 students are drawn. (a) What type of distribution is the sampling distribution of mean and why? (b) What is the probability that the average age of these 64 students is greater than 23 years? (c) What is the probability that the total age of a class of 24 students will be less than 540? (5 points)
In a university class that includes 120 students, mostly non-traditional, the Mean age is 32, with a standard deviation 12 students, and with a narmal distribution. Six of these students are international students. What is the probability that, if one student is picked at a random, he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it!! 1. 2. What is the probability that if ONE student is selected at random,...
Please show how to solve using excel.
At a large university, the mean age of the students is 22.3 years, and the standard deviation is 4 years. A random sample of 64 students is drawn. What is the probability that the average age of these students is greater than 23 years? In another large university, 25% of the students are over 21 years of age. In a sample of 400 students, what is the probability that more than 110 of...
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