Question

You want to obtain a sample to estimate a population mean. Based on previous evidence, you...

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 61.7 . You would like to be 95% confident that your estimate is within 4 of the true population mean. How large of a sample size is required?
Use a z* value accurate to TWO places for this problem. (Not z = 2)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

To find sample size (n) such that

​​​​​​​

0 0
Know the answer?
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
Similar Questions
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 32.5 . You would like to be 95% confident that your estimate is within 10 of the true population mean. How large of a sample size is required? Use a z* value accurate to TWO places for this problem. (Not z = 2)
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 45.1 σ = 45.1 . You would like to be 95% confident that your estimate is within 10 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=75.4σ=75.4. You would like to be 95% confident that your estimate is within 5 of the true population mean. How large of a sample size is required? n=____
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=56.1. You would like to be 95% confident that your estimate is within 1 of the true population mean. How large of a sample size is required? n = Hint: You appear to have rounded DOWN!
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 42.2 . You would like to be 99% confident that your estimate is within 5 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 67.4. You would like to be 99% confident that your estimate is within 4 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=35.3σ=35.3. You would like to be 95% confident that your estimate is within 0.1 of the true population mean. How large of a sample size is required? As in the reading, in your calculations: --Use z = 1.645 for a 90% confidence interval --Use z = 2 for a 95% confidence interval --Use z = 2.576 for...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=43.8σ=43.8. You would like to be 98% confident that your estimate is within 5 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=59.2. You would like to be 98% confident that your estimate is within 10 of the true population mean. How large of a sample size is required? n = __________________
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 63.5 . You would like to be 98% confident that your estimate is within 4 of the true population mean. How large of a sample size is required? n = ?
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT