Question

A random sample of adults were asked whether they prefer reading an e-book over a printed...

A random sample of adults were asked whether they prefer reading an e-book over a printed book. The survey resulted in a sample proportion of p̂ =0.14, with a sampling standard deviation of σp̂ =0.02, who preferred reading an e-book. Use the Empirical Rule to construct a 95% confidence interval for the true proportion of adults who prefer e-books.

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

Homework Answers

Answer #1

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
In a survey, people were asked whether they prefer candidate A or candidate B. Out of...
In a survey, people were asked whether they prefer candidate A or candidate B. Out of 264 people, 90 said they prefer candidate A. Find the sample proportion and 95% confidence interval for this statistic. (Round all answers to 2 decimal places.) Sample proportion= Confidence Interval= to =
in a random poll taken in 2008, Gallup asked 1006 national adults whether they were baseball...
in a random poll taken in 2008, Gallup asked 1006 national adults whether they were baseball fans. 433 of the sample said they were. Construct a 95% confidence interval​ to estimate the ​proportion​ of national adults who are baseball fans. ​Use 4 non-zero decimal places on calculations. a) Find the Zα/2 b) Find σpˆ c) Find the margin of error (MoE) and construct the confidence interval
A poll taken this year asked 1010 adults whether they were fans of a particular sport...
A poll taken this year asked 1010 adults whether they were fans of a particular sport and 47​% said they were. Last​ year, 46​% of a​ similar-size sample had reported being fans of the sport. Complete parts a through e below. ​a) Find the margin of error for the poll taken this year if one wants 95​% confidence in the estimate of the percentage of adults who are fans of the sport. MEequals nothing ​(Round to three decimal places as​...
A random sample of American toads were measured and the proportion of toads that were over 1 ounce in...
A random sample of American toads were measured and the proportion of toads that were over 1 ounce in weight recorded. The measurements resulted in a sample proportion of p′=0.16, with a sampling standard deviation of σp′=0.02. Write a 95% confidence interval for the true proportion of American toads that are over 1ounce in weight.
A survey conducted in July 2015 asked a random sample of American adults whether they had...
A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an online dating site or a dating app on their cell phone). 18-to 24-year-olds The survey included 194 young adults (ages 18 to 24 ) and 53 of them said that they had used online dating. If we use this sample to estimate the proportion of all young adults to use online dating, the standard error is 0.032 ....
30 randomly selected college students were asked whether they prefer to watch football or basketball. 8...
30 randomly selected college students were asked whether they prefer to watch football or basketball. 8 students said they prefer to watch basketball, while the remaining 22 said they prefer to watch football. Go to www.lock5stat.com/StatKey/Links to an external site., but click 'CI for Single Proportion' instead of ‘CI for Single Mean, Median, St.Dev.’ Click on the button near the top of the page that says ‘Edit Data.’ Enter the count and sample size giving in this problem. Then, click...
1. A random sample of 640 adults in a large country was asked “Do you need...
1. A random sample of 640 adults in a large country was asked “Do you need a haircut?” Of the 640 adults surveyed, 283 indicated that they need a haircut. 1a. Check the requirements needed to construct a confidence interval for the population proportion. 1b. Find a 95% confidence interval for the population proportion of adults who need a haircut. 1c. Could exactly 25% of the country need a haircut? 2. In a survey of 2000 students, 1638 of them...
In a poll survey 1200 people were chosen by random sampling and asked whether they supported...
In a poll survey 1200 people were chosen by random sampling and asked whether they supported a proposed amendment or not. 216 of the participants supported it. Determine the 95% confidence interval for the proportion of amendment supporters. What are the lower and upper bounds of the confidence interval?
A random sample of 1025 adults in a certain large country was asked "do you pretty...
A random sample of 1025 adults in a certain large country was asked "do you pretty much think televisions are a necessity or a luxury you could do without?" of the 1025 adults surveyed, 524 indicated that televisions are a luxury they could do without. Construct and interpret a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
A survey asked whether respondents favored or opposed the death penalty for people convicted of murder....
A survey asked whether respondents favored or opposed the death penalty for people convicted of murder. Software shows the results​ below, where X refers to the number of the respondents who were in favor. Construct the​ 95% confidence interval for the proportion of the adults who were opposed to the death penalty from the confidence interval stated below for the proportion in favor. x- 1767 n- 2617 sample p- .6752 95.0% CI- (.657, .693)
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT