ZuoTi.Pro
Question

7. At a large university, the mean age of students is 22.3 years, and standard deviation is 4 years. Random samples of 64 stu

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

22.3 =u, - GY u N122.3, =o.s) 4 VGT ha centret demit theoreem FE P(x > 23) = elza 23 - 2.2-3) Us x zid 0:2) O: 0808 -3 u rx3

0 0
Add a comment
Know the answer?
Add Answer to:
7. At a large university, the mean age of students is 22.3 years, and standard deviation...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 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...

  • Questions 23-30: A normal population has a mean μ = 50 and a standard deviation σ...

    Questions 23-30: A normal population has a mean μ = 50 and a standard deviation σ = 8. That is, ?~?(50,8). Circle your final answer for each question below. 23. What is the z-score for an individual with a value of 38? 24. What is the probability that a randomly chosen individual from this population will be greater than 40? 25. What is the probability that a randomly chosen individual from this population will be between 44 and 60? 26....

  • 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...

  • In a standard university class that includes 120 students, mostly non-traditional, the Mean age is 32,...

    In a standard 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. 1. What is the probability that, if one student is picked at random he/she be a teenager (12 to 19 years old)? You need to (somewhat) critically think about this before tackling it! Show you work.

  • 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,...

  • The mean age of an evening student is 28 with a standard deviation of 7 years....

    The mean age of an evening student is 28 with a standard deviation of 7 years. if the sample of 50 is collected, what is the probability that the mean age of the sample is less than 24?

  • 5.4.1 Question Help A population has a mean = 141 and a standard deviation o =...

    5.4.1 Question Help A population has a mean = 141 and a standard deviation o = 28. Find the mean and standard deviation of the sampling distribution of sample means with sample size n = 40. The mean is :-), and the standard deviation is 0;=0 (Round to three decimal places as needed.) 5.4.2 Question Help A population has a meanu - 74 and a standard deviation = 8. Find the mean and standard deviation of a sampling distribution of...

  • The mean commute time for all commuting students of a university is 23 minutes with a...

    The mean commute time for all commuting students of a university is 23 minutes with a population standard deviation of 4 minutes. A random sample of 63 driving times of commuters is taken. ̅ a) [2pts] Is the sampling distribution of the sample mean ? normal? Circle the number of i. ii. iii. iv. b) the best answer. Yes, because the sample size n is greater than 30. No, because the parent population of the data is not said to...

  • 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?

  • 1) Suppose cattle in a large herd have a mean weight of 1169lbs and a variance...

    1) Suppose cattle in a large herd have a mean weight of 1169lbs and a variance of 17,161. What is the probability that the mean weight of the sample of cows would differ from the population mean by greater than 12lbs if 145 cows are sampled at random from the herd? Round your answer to four decimal places. 2) The mean lifetime of a tire is 36 months with a variance of 49. If 126 tires are sampled, what is...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
Active Questions
ADVERTISEMENT