Question

If n = 320 and ˆpp^ (p-hat) = 0.05, construct a 90% confidence interval. Give your...

If n = 320 and ˆpp^ (p-hat) = 0.05, construct a 90% confidence interval.

Give your answers to three decimals

_< p >_

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

Homework Answers

Answer #1

Solution :

Given that,

Point estimate = sample proportion = = 0.05

Z/2 = 1.3645

Margin of error = E = Z / 2 * (( * (1 - )) / n)

= 1.645 * (((0.05 * 0.95) / 320)

= 0.020

A 90% confidence interval for population proportion p is ,

- E < p < + E

0.05 - 0.020 < p < 0.05 + 0.020

0.030 < p < 0.070

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
a) If n=390 and ˆpp^ (p-hat) =0.88, find the margin of error at a 99% confidence...
a) If n=390 and ˆpp^ (p-hat) =0.88, find the margin of error at a 99% confidence level Give your answer to three decimals b)Out of 200 people sampled, 44 had kids. Based on this, construct a 99% confidence interval for the true population proportion of people with kids. Give your answers as decimals, to three places c) If n=25, ¯xx¯(x-bar)=32, and s=2, construct a confidence interval at a 90% confidence level. Assume the data came from a normally distributed population....
If n=160 and ˆpp^ (p-hat) =0.28, find the margin of error at a 90% confidence level...
If n=160 and ˆpp^ (p-hat) =0.28, find the margin of error at a 90% confidence level Give your answer to three decimals
If n=300 and p^ (p-hat) = 0.38, construct a 99% confidence interval. Give your answers to...
If n=300 and p^ (p-hat) = 0.38, construct a 99% confidence interval. Give your answers to three decimals. ____< p <____
If n = 500 and ˆp (p-hat) = 0.75, construct a 95% confidence interval. Give your...
If n = 500 and ˆp (p-hat) = 0.75, construct a 95% confidence interval. Give your answers to three decimals < p <
If n=320 and p' (p-prime) = 0.23, construct a 95% confidence interval. Give your answers to...
If n=320 and p' (p-prime) = 0.23, construct a 95% confidence interval. Give your answers to three decimals. _______ < p < ________
If n=210 and ˆpp^ (p-hat) =0.74, find the margin of error at a 90% confidence level...
If n=210 and ˆpp^ (p-hat) =0.74, find the margin of error at a 90% confidence level Give your answer to three decimals Submit Question
If n=240 and ˆ p (p-hat) = 0.58, construct a 99% confidence interval. Give your answers...
If n=240 and ˆ p (p-hat) = 0.58, construct a 99% confidence interval. Give your answers to three decimals
If n=410 and ˆpp^ (p-hat) =0.41, find the margin of error at a 95% confidence level...
If n=410 and ˆpp^ (p-hat) =0.41, find the margin of error at a 95% confidence level Give your answer to three decimals
If n=280 and ˆpp^ (p-hat) =0.71, find the margin of error at a 99% confidence level...
If n=280 and ˆpp^ (p-hat) =0.71, find the margin of error at a 99% confidence level Give your answer to three decimals
If n=440 and ˆpp^ (p-hat) =0.75, find the margin of error at a 99% confidence level....
If n=440 and ˆpp^ (p-hat) =0.75, find the margin of error at a 99% confidence level. 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 a 99% confidence interval. Give your answer rounded to three decimal places.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT