Question

A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size sample should be obtained if she wishes the estimate to be within 0.02 with 90% confidence if (a) she uses a previous estimate of 0.34? (b) she does not use any prior estimates? (a) n equals ____? (Round up to the nearest integer.)

Answer #1

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.02 with 95%
confidence if
(a) she uses a previous estimate of 0.36?
(b) she does not use any prior estimates?
(a
(Round up to the nearest integer.)
(Round up to the nearest integer.)

a researcher wishes to estimate the proportion of
adults who have high-speed Internet access. What size sample should
be obtained if she wishes the estimate to be within 0.02 with a 90%
confidence if
(a) she uses a previous estimate of 0.52
(b) she does not use any prior estimates?
(a) n=
(b) n=
round to the nearest integer

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.04 with 95%
confidence if
A.) She uses a previous estimate of 0.32? (Round up to the
nearest integer).
B.) She does not use any prior estimates? (Round up to the
nearest integer).

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.01 with 95%
confidence if (a) she uses a previous estimate of 0.34? (b) she
does not use any prior estimates?

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.03 with 90%
confidence if (a) she uses a previous estimate of 0.52, does she
not use any prior estimates?

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.04 with 90%
confidence if (a) she uses a previous estimate of 0.32? (b) she
does not use any prior estimates?

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within
0.04 with 90% confidence if
(a) she uses a previous estimate of 0.36?
(b) she does not use any prior estimates?

A researcher wishes to estimate the proportion of adults who
have? high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.03 with 99?%
confidence if ?(a) she uses a previous estimate of 0.48?? ?(b) she
does not use any prior? estimates?

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.04 with 95%
confidence if
(a) she uses a previous estimate of 0.54?
(b) she does not use any prior estimates?

A researcher wishes to estimate the proportion of adults who
have high-speed Internet access. What size sample should be
obtained if she wishes the estimate to be within 0.04 with 99%
confidence if (a) she uses a previous estimate of 0.46? (b) she
does not use any prior estimates?

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