One of the questions in the Pew Internet & American Life Project asked adults if
ID: 3371099 • Letter: O
Question
One of the questions in the Pew Internet & American Life Project asked adults if they used the Internet at least occasionally (Pew website, October 23, 2012). The results showed that out of 478 adults aged 18-29 answered Yes: 741 out of 833 adults aged 30-49 answered Yes; 1058 out of1544 adults aged sand over answered Yes. Use 2-ta Round your answers to four decimal places a. Develop a point estimate of the proportion of adults aged 18-29 who use the Internet b. Develop a poirt estimate of the proportion of adults aged 3049 who use the Internet C. Develop a poirt estimate of the propartion of adults aged S0 and over who use the Internet. d. Comment on any relationship between age and internet use that seems appar rent Select your anr e. Suppose your target population of interest is that of all aduts CH ears of aue and vereloo an estimate of the proportion of that population who use the InternetExplanation / Answer
a.Develop a point estimate of the proportion of adults aged 18 – 29 who use the Internet
454 out of 478 adults aged 18 - 29 answered yes
so =454/478 = 0.9498
b.Develop a point estimate of the proportion of adults aged 30 – 49 who use the Internet
741 out of 833 adults aged 30 – 49 answered yes
so =741/833 = 0.8896
c.Develop a point estimate of the proportion of adults aged 50 and over who use the Internet
1058 out of 1644 adults aged 50 and over answered yes
so, =1058/1644 = 0.6436
d.Comment on any relationship between age and internet use that seems apparent.
Result shows, Younger adults are more likerly to use 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
=(454+741+1058)/(478+833+1644)
=0.7624
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