ZuoTi.Pro
Question
normal probability distribution
. Provide an appropriate response. (1 point) Samples of size n 15 are randomly selected from the population of numbers (0 through 9) produced by a random-number generator, and the standard deviation is found for each sample. What is the distribution of the sample standard deviations? O normal (approximately) O skewed to the right O skewed to the left O not enough information provided 15. Provide an appropriate response. point) Samples of size n 90 are randomly selected from the population of numbers (0 through9) produced by a random-number generator, and the variance is found for each sample. What is the distribution of the sample variances? Oskewed to the right Oskewed to the left o not enough information provided normal (approximately)
16. Solve the problem. 1 point) For women aged 18-24, systolic blood pressures (in mm Hg) are nórmally distributed witha mean of 114.8 and a standard deviation of 13.1. If 23 women aged 18-24 are randomly selected, find the probability that their mean systolic blood pressure is between 119 and 122 0.0577 0.9341 00833 0.3343 17. Solve the problem. potnt) The scores on a certain test are normally distributed with a mean score of 43 and a standard deviation of 3. What is the probability that a sample of 90 students will have a mean score of at least 43.3162? 0 0.1587 o0.3413 0.3174 0.8413
17. Solve the problem. (1 point) The scores on a certain test are normally distributed with a mean score of 43 and a standard deviation of 3. What is the probability that a sample of 90 students will have a mean score of at least 43.3162? 00.1587 O 0.3413 0.3174 О 0.8413 18. Solve the problem. (1 point) The weights of the fish in a certain lake are normally distributed with a mean of 19 1b and a standard deviation of 6. If 4 fish are randomly selected, what is the probability that the mean weight will be between 16.6 and 22.6 lb? 0.6730 0.0968 0.3270 0 04032
19. Solve the problem. (l point) A banks loan officer rates applicants for credit. The ratings are normally distributed witha mean of 200 and a standard deviation of 50. If 40 different applicants are randomly selected, find the probability that their mean is above 215. 0 0.3821 O0.4713 00.1179 0 0.0287 20. Solve the problem. (1 point) In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh. If 50 different homes are randomly selected, find the probability that their mean energy consumption level for September is greater than 1075 kWh. 0.0438 0.2090 0.2910 0.4562
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

hp option:- nomal (pcmakely) 15) normal (ofprulmakelリ Stanlard deviation 13 , SEニ13-1=2.73 473 122) p18 22- 114 12 ド=43 43, 31 G2-43 3446 x-μ 、 b.316 18 22.6-19 tosing2 tate 10.02.8O. 20o

0 0
Add a comment
Know the answer?
Add Answer to:
normal probability distribution . Provide an appropriate response. (1 point) Samples of size n 15 are...
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

  • 12. Provide an appropriate response. Samples of size n- 240 are randomly selected from the population...

    12. Provide an appropriate response. Samples of size n- 240 are randomly selected from the population of numbers (0 through 20) produced by a random-number generator, and the variance is found for each sample. What is the distribution of the sample variances? O normal (approximately) O skewed to the right O skewed to the left O not enough information provided 13. Choose the correct response. ( point) Why is sampling without replacement acceptable with a large population? When a small...

  • 25. Provide an appropriate response. Samples of size n-250 are randomly selected from the U.S. census...

    25. Provide an appropriate response. Samples of size n-250 are randomly selected from the U.S. census data, and the median income is found for each sample. What is the distribution of the sample medians? O skewed to the left O not enough information provided O normal (approximately O skewed to the right 26. Solve the problem. In a study of wait times at an amusement park, the most popular roller coaster has a mean wait time of 17.4 minutes with...

  • probability, normal distribution

    In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of218 kWh. For a randomly selected home, find the probability that the September energy consumption level is between 1100 kWh and 1225 kWh.

  • The scores on a certain test are normally distributed with a mean score of 53 and...

    The scores on a certain test are normally distributed with a mean score of 53 and a standard deviation of 2. What is the probability that a sample of 90 students will have a mean score of at least 53.2108? 0.8413 0.3174 0.3413 0.1587

  • Question 12 6 pts The scores on a certain test are normally distributed with a mean...

    Question 12 6 pts The scores on a certain test are normally distributed with a mean score of 65 and a standard deviation of 2. What is the probability that a sample of 90 students will have a mean score of at least 65.2108? 0.1587 0.3174 0.3413 0.8413

  • 6) Provide an appropriate response. Round to the nearest hundredth 6) Find the standard deviation for...

    6) Provide an appropriate response. Round to the nearest hundredth 6) Find the standard deviation for the given probability distribution XP(x) 0 0.19 1 10.26 2 0.18 3 0.24 4 0.13 A) = 1.40 B) c = 1.76 C) = 1.33 D) 0 = 2.28 Find the mean, u, for the binomial distribution which has the stated values of nand p. Round answer to the nearest tenth. 7) n = 1599; p=0.57 A) u = 9057 B) 4 = 913.0...

  • Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and...

    Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. 13) Shaded area is 0.9599. A) - 1.38 B) 1.03 1.82 D) 1.75 14) Shaded area is 0.0694. A) 1.45 B) 1.26 1.48 D) 1.39Find the indicated value. 15) z0.005 A) 2.535 D) 2.015 92.835 B) 2.575 16) z0.36  A) 1.76 B) 0.45 1.60 D) 0.36 Provide an appropriate response. 17) Find the area of the shaded region. The graph depicts IQ scores of adults, and those scores are normally distributed...

  • Solve the problem. 15) A bank's loan officer rates applicants for credit. The ratings are normally...

    Solve the problem. 15) A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50. If 40 different applicants are randomly selected, find the probability that their mean is above 215

  • 1) We know that z has a standard normal distribution with a mean of 0 and...

    1) We know that z has a standard normal distribution with a mean of 0 and standard deviation of 1. The probability that z is less than 1.15 is  . Use your z-table and report your answer to four decimal places. 2)A sample of 15 grades from a recent Stats exam has a mean of 69.3 points (out of a possible 100 points) and a standard deviation of 16.5 points. Calculate the z-score for the student who scored 74.1 points on...

  • hapter 8: Sampling Distribution 1. The distribution of i is normal: n 2 30. 2. Be...

    hapter 8: Sampling Distribution 1. The distribution of i is normal: n 2 30. 2. Be able to find the mean of sample means: Hx =H 3. Be able to find the standard deviation of sample means: Ox = %3D 4. Be able to distinguish and find the probability for an individual value x and a group x. 5. Be able to distinguish and find an individual value x or a group average £ from a given probability. 6. Examples...

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
ADVERTISEMENT