Question

According to a poll, 70% of California adults (352 out of 506 surveyed) feel that education...

According to a poll, 70% of California adults (352 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California.

Find a 90% confidence interval for the population proportion. (Round your answers to three decimal places.)

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

Homework Answers

Answer #1

Answer: According to a poll, 70% of California adults (352 out of 506 surveyed) feel that education is one of the top issues facing California.

Solution:

x = 352

n = 506

= x/n

= 352/506

= 70% = 0.70

Therefore, a 90% confidence interval for the population proportion is between 0.667 and 0.734.

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
According to a poll, 78% of California adults (393 out of 506 surveyed) feel that education...
According to a poll, 78% of California adults (393 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California. What is a point estimate for the true population proportion?
According to a poll, 76% of California adults (387 out of 506 surveyed) feel that education...
According to a poll, 76% of California adults (387 out of 506 surveyed) feel that education is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education is one of the top issues facing California. What is a point estimate for the true population proportion?
According to a Field Poll, 79% of California adults (actual results are 400 out of 506...
According to a Field Poll, 79% of California adults (actual results are 400 out of 506 surveyed) feel that “education and our schools” is one of the top issues facing California. We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education and the schools is one of the top issues facing California. 1) A point estimate for the true population proportion is: (Write as a decimal) 2) The margin of error...
1. Insurance companies are interested in knowing the population percent of drivers who always buckle up...
1. Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey to be 95% confident that the population proportion is estimated to within 0.04? (Round your answer up to the nearest whole number.) 2. According to a poll, 75% of California adults (377 out of 506 surveyed) feel that...
An interactive poll found that 324 of 2,266 adults aged 18 or older have at least...
An interactive poll found that 324 of 2,266 adults aged 18 or older have at least one tattoo. ?(a) Obtain a point estimate for the proportion of adults who have at least one tattoo. ?(b) Construct a 90 ?% confidence interval for the proportion of adults with at least one tattoo. ?(c) Construct a 98 ?% confidence interval for the proportion of adults with at least one tattoo. ? (d) What is the effect of increasing the level of confidence...
In a poll, 416 of 1040 randomly selected adults aged 18 or older stated that they...
In a poll, 416 of 1040 randomly selected adults aged 18 or older stated that they believe there is too little spending on education. Use the information to answer the following questions. (a) (1 pt) Obtain a point estimate for the proportion of adults aged 18 or older who feel there is too little spending on education. (b) (2 pts) Verify that the requirements for constructing a confidence interval about p are satisfied.(You must state the requirements). (c) (2 pts)...
According to an online poll, 40100 people out of 44700 people surveyed think that the Charleston...
According to an online poll, 40100 people out of 44700 people surveyed think that the Charleston Chiefs will win their game against the Halifax Highlanders. Find a 90% confidence interval for p, the percentage of people who thinks that the Charleston Chiefs will win the game. Also find the margin of error. Round your answers to 3 decimal places.
According to a poll of adults about 42% work during their summer vacation. Suppose that this...
According to a poll of adults about 42% work during their summer vacation. Suppose that this claim about the population proportion is true. Now if we take a sample of 49 adults, and find the sample proportion [^(p)] of adults who work during summer vacation. *Please dont skip steps and explain how you calculated the answer!* 1. Find c such that P([^(p)] ? c) = 0.6
An interactive poll found that 386 of 2 comma 324 adults aged 18 or older have...
An interactive poll found that 386 of 2 comma 324 adults aged 18 or older have at least one tattoo. ?(a) Obtain a point estimate for the proportion of adults who have at least one tattoo. ?(b) Construct a 95?% confidence interval for the proportion of adults with at least one tattoo. ?(c) Construct a 98?% confidence interval for the proportion of adults with at least one tattoo. ?(d) What is the effect of increasing the level of confidence on...
6.5 Prop 19 in California. In a 2010 Survey USA poll, 70% of the 119 respondents...
6.5 Prop 19 in California. In a 2010 Survey USA poll, 70% of the 119 respondents between the ages of 18 and 34 said they would vote in the 2010 general election for Prop 19, which would change California law to legalize marijuana and allow it to be regulated and taxed. At a 95% confidence level, this sample has an 8% margin of error. Based on this information, determine if the following statements are true or false, and explain your...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT