# Statistics

posted by .

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; 1058 out of 1644 adults aged 50 and over answered yes.

a.) Develop a point estimate of the proportion of adults aged 18 – 29 who use the Internet.

e.) Suppose your target population of interest is that of all adults (18 years of age and over). Develop an estimate of the proportion of that population who use the Internet.

I need clarification on e) I'm not exactly sure how to go about solving for a population. Thank you for the help.

• Statistics -

A. .9498

E. (454+741+1058)/(478+833+1644) = ?

• Statistics -

E=.7624

• Statistics -

vjhkvk

## Similar Questions

1. ### statistics

Is there a significant difference between the average internet usage of persons aged less than or equal to 40 and those aged over 40?
2. ### statistics

A Gallup Poll asked, "In general, how often do you experience stress in your daily life - never, rarely, sometimes, or frequently?
3. ### stats

This week we practice with Binomial Distribution. You can use Appendix Table E or Excel Function Binomdist. About 30% of adults in United States have college degree. (probability that person has college degree is p = 0.30). If N adults …
4. ### Statistics

According to the Pew Internet &American Life Project. 75% of American adults use the internet. The Pew project authors also peported on the percentage of Americans who use the internet by age group. The data in the in the agefile group …
5. ### math

A random sample of 2000 adults showed that 1120 of them have stopped at least once on the Internet. What is the (approximate) probability that a randomly selected adult has stopped on the Internet?
6. ### Statistics

A survey of 815 students is asked whether or not they have cable TV and Internet cable in their rooms at home. Results of the survey showed that 69% of students has cable TV, 58% of students has Internet cable and 37% of students has …
7. ### Statistics

. Two thousand randomly selected adults were asked whether or not they have ever shopped on the internet. The following table gives a two-way classification of the responses obtained. Have shopped Have never shopped Male 500 700 Female …
8. ### Statistics

The Centers for Disease Control (CDC) collects yearly statistics on drinking behavior in the United States by surveying a random sample of U.S. adults. The following data display the percent of adults aged 18 years and over who had …
9. ### statistics

According to an Internet posting, 80% of adults enjoy drinking beer. If a group of 3 adults is selected at random, find the probability that all of them enjoy drinking beer is:
10. ### Math (Statistics: Test Statistic, Proportion)

The Pew Research Center Internet Project, conducted on the 25th anniversary of the Internet, involved a survey of 857 Internet users (Pew Research Center website, April 1, 2014). It provided a variety of statistics on Internet users. …

More Similar Questions