Question

Pew Internet and American Life Project asked an SRS of 2285 cell phone users whether they...

Pew Internet and American Life Project asked an SRS of 2285 cell phone users whether they had used their cell phone to look up health or medical information. Of these, 462 said “Yes.” Calculate a 99% confidence interval to estimate the proportion of all cell phone users who have used their cell phone to look up health or medical information. What is the upper bound of your confidence interval?

(Give at least two decimal places.)

Homework Answers

Know the answer?
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
Similar Questions
A Pew Internet poll asked cell phone owners about how they used their cell phones. One...
A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the past 30 days they had used their phone while in a store to call a friend or family member for advice about a purchase they were considering. The poll surveyed 1003 adults living in the United States by telephone. Of these, 462 responded that they had used their cell phone while in a store within the last...
The Pew Internet and American Life Project reported on the widespread use of the Internet to...
The Pew Internet and American Life Project reported on the widespread use of the Internet to search for information regarding experimental treatments or medicines. From telephone interviews of 1293 adult Internet users, it was found that 237 had searched for information on experimental treatments or medicines in the past year. With 96 % confidence, we estimate between  % and  % of adult Internet users had searched for information on experimental treatments or medicines in the past year. (After converting to percentages, round...
One of the questions in the Pew Internet & American Life Project asked adults if they...
One of the questions in the Pew Internet & American Life Project asked adults if they used the Internet at least occasionally. The results showed that 454 out of 478 adults aged 18–29 answered Yes; 741 out of 833 adults aged 30–49 answered Yes; and 1,058 out of 1,644 adults aged 50 and over answered Yes. If required, round your answers to four decimal places. (a) Develop a point estimate of the proportion of adults aged 18–29 who use the...
1) The Pew Research Center Internet Project conducted a survey of 907 Internet users. This survey...
1) The Pew Research Center Internet Project conducted a survey of 907 Internet users. This survey provided a variety of statistics on them. If required, round your answers to four decimal places. (a) The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally. to (b) The sample survey showed...
The Pew Research Center Internet Project conducted a survey of 957 Internet users. This survey provided...
The Pew Research Center Internet Project conducted a survey of 957 Internet users. This survey provided a variety of statistics on them. If required, round your answers to four decimal places. (a) The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally. ____to____ (b) The sample survey showed that...
The Pew Research Center Internet Project conducted a survey of 857 Internet users. This survey provided...
The Pew Research Center Internet Project conducted a survey of 857 Internet users. This survey provided a variety of statistics on them. If required, round your answers to four decimal places. (a) The sample survey showed that 90% of respondents said the Internet has been a good thing for them personally. Develop a 95% confidence interval for the proportion of respondents who say the Internet has been a good thing for them personally. to (b) The sample survey showed that...
The Pew Research Centers Internet and American Life project surgery of 2,252 American Adults, ages 18...
The Pew Research Centers Internet and American Life project surgery of 2,252 American Adults, ages 18 years and older, conducted January 20, 2012 - February 19, 2011, revealed that 46% of American adults own a smartphone of some kind A) Perform the two (2) checks necessary for determining the confidence interval for the proportion go American adults who own a smartphone. For each check, clearly state the conclusion using 1 sentence. You must use appropriate notation. B) Determine and state...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 2662 subjects randomly selected from an online group involved with ears. 1018 surveys were returned. Construct a 99% confidence interval for the proportion of returned surveys. ​a) Find the best point estimate of the population proportion p. ​(Round to three decimal places as​ needed.) ​b) Identify the value of the margin of error E. ​(Round to three decimal places as​ needed.) ​c) Construct...
In a survey on downloading music, a poll asked 724 internet users if they "ever downloaded...
In a survey on downloading music, a poll asked 724 internet users if they "ever downloaded music from an internet site that was not authorized by a recording company, or not" and 16% responded "yes". Construct a 99% confidence interval for the true proportion of internet users who have downloaded music from an internet site that was not authorized. What is the confidence interval?
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed...
In a study of cell phone use and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 2353 subjects randomly selected from an online group involved with ears. 965 surveys were returned. Construct a 95​% confidence interval for the proportion of returned surveys. ​a) Find the best point estimate of the population proportion p. ________? ​(Round to three decimal places as​ needed.) ​b) Identify the value of the margin of error E. E=______? ​(Round to three decimal places as​ needed.)...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT