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 Internet. |
(b) | Develop a point estimate of the proportion of adults aged 30–49 who use the Internet. |
(c) | Develop a point estimate of the proportion of adults aged 50 and over who use the Internet. |
(d) | Comment on any apparent relationship between age and Internet use. |
The input in the box below will not be graded, but may be reviewed and considered by your instructor. | |
Item 4 |
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(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. |
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