Question

Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100 A 95% confidence interval for μ is OD (Round to one decimal place as needed.)
6.1.27 Use the confidence interval to find the margin of error and the sample mean (1.58,2.06) The margin of error is (Round to two decimal places as needed)
6.1.31 Find the minimum sample size n needed to estimate μ for the given values of c, o, and E. cz 0.98, σ 7.7, and E ! Assume that a preliminary sample has at least 30 members. n-(Round up to the nearest whole number.)
6.1.47 Question Help * People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 95% confidence? Intial survey results indicate that ơ-19 1 books. A 95% confidence level requires subjects (Round up to the nearest whole number as needed)
0 0
Add a comment Improve this question Transcribed image text
Answer #1

For Q1. Standard normal distribution is used Z(0.05/2)= 1.96

0 osmula 148 ± 1.9 ( i00 166.231 , 149, x4 69.8

Add a comment
Know the answer?
Add Answer to:
Construct the confidence interval for the population mean μ c: 0.95, x-16.8, σ: 9.0, and n-100...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

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
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