ZuoTi.Pro
Question

Suppose that a simple random sample is taken from a normal population having a standard deviation of 11 for the purpose of obtaining a 90% confidence interval for the mean of the population a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 36 a. The margin of error for a sample size of 9 is (Round to two decimal places as needed.) b. The margin of error for a sample size of 36 is (Round to two decimal places as needed.)

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

simple random-Sample is taken- rom a normal popula onsiA 8 levd ot confidence. CC)ニーgot、一0.30 sample size (n 9 The formwd r margin o emrOY ZZo os 1645 using Z ta ble The magi icne e smpe sample siae 4 is E 6 03 Simlarl ta ken 36 then E 1615 6 E 3.02 The mag in s eror Ist sampic size ss is E = 3.02

0 0
Add a comment
Know the answer?
Add Answer to:
Suppose that a simple random sample is taken from a normal population having a 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

  • Suppose that a simple random sample is taken from a normal population having a standard deviation...

    Suppose that a simple random sample is taken from a normal population having a standard deviation of 11 for the purpose of obtaining a 95​% confidence interval for the mean of the population. a. If the sample size is 16​, obtain the margin of error. b. Repeat part​ (a) for a sample size of 81. a. The margin of error for a sample size of 16 is ??? ​(Round to two decimal places as​ needed.) b. The margin of error...

  • Suppose that a simple random sample is taken from a normal population having a standard deviation...

    Suppose that a simple random sample is taken from a normal population having a standard deviation of 6 for the purpose of obtaining a 90​% confidence interval for the mean of the population. The margin of error for a sample size of 16 is ??? ​(Round to four decimal places as​ needed.) The margin of error for a sample size of 81 is ??? ​(Round to four decimal places as​ needed.)

  • Suppose that a simple random sample is taken from a normal population having a standard deviation...

    Suppose that a simple random sample is taken from a normal population having a standard deviation of 15 for the purpose of obtaining a 95​% confidence interval for the mean of the population. a. If the sample size is 44​, obtain the margin of error. b. Repeat part​ (a) for a sample size of 25

  • answer a & b please Suppose that a simple random sample is taken from a normal...

    answer a & b please Suppose that a simple random sample is taken from a normal population having a standard deviation of 15 for the purpose of obtaining a 95% confidence interval for the mean of the population. a. If the sample size is 9, obtain the margin of error. b. Repeat part (a) for a sample size of 16. a. The margin of error for a sample size of 9 is □ (Round to two decimal places as needed.)

  • Suppose a random sample of size 17 was taken from a normally distributed population, and the...

    Suppose a random sample of size 17 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 5.0. a) Calculate the margin of error for a 95% confidence interval for the population mean. Round your response to at least 3 decimal places.     b) Calculate the margin of error for a 90% confidence interval for the population mean. Round your response to at least 3 decimal places.

  • A random sample of size n = 21, taken from a normal population with a standard...

    A random sample of size n = 21, taken from a normal population with a standard deviation 04 =5, has a mean X4 = 90. A second random sample of size n2 = 37, taken from a different normal population with a standard deviation o2 = 4, has a mean X2 = 39. Find a 94% confidence interval for 11 - H2 Click here to view page 1 of the standard normal distribution table. Click here to view page 2...

  • 92.19-T Question Help A simple random sample of size n is drawn from a population that...

    92.19-T Question Help A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, x, is found to be 18.3, and the sample standard deviation s, is found to be 5.6. (a) Construct a 90% confidence interval about if the sample size, n, is 31. (b) Construct a 90% confidence interval about μ if the sample size, n' is 61 . How does increasing the sample size affect the margin of error,...

  • A sample mean, sample size, population standard deviation, and confidence level are provided. Use this information...

    A sample mean, sample size, population standard deviation, and confidence level are provided. Use this information to complete parts (a) through (c) x = 33, n = 25, C = 6, confidence level = 90% Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table a. Use the one-mean z-interval procedure to find a confidence interval for the mean of the population from which the sample...

  • A simple random sample of size nis drawn from a population that is normally distributed. The...

    A simple random sample of size nis drawn from a population that is normally distributed. The sample mean, X, is found to be 106, and the sample standard deviations, is found to be 9. (a) Construct a 95% confidence interval about if the sample size, n, is 26 (b) Construct a 95% confidence interval about if the sample size, n, is 13 (c) Construct a 90% confidence interval about if the sample size, n, is 26 (d) Should the confidence...

  • A simple random sample of size n is drawn from a population that is known to...

    A simple random sample of size n is drawn from a population that is known to be normally distributed. The sample variance, s', is determined to be 13.2. Complete parts (a) through (c). (a) Construct a 90% confidence interval for o2 if the sample size, n, is 20. The lower bound is 8.32 . (Round to two decimal places as needed.) The upper bound is 24.79. (Round to two decimal places as needed.) (b) Construct a 90% confidence interval for...

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