What size sample should be obtained if she wishes the estimate to be within 0.01 with 90% confidence if
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 90% confidence if
(a) she uses a previous estimate of 0.34?
(b) she does not use any prior estimates?
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What size sample should be obtained if she wishes the estimate to be within 0.01 with 90% confidence if
A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size...
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 95% confidence if (a) she uses a previous estimate of 0.34? (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...
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) nequals nothing (Round up to the nearest integer.) b) nequals nothing (Round up to the nearest integer.)
A researcher wishes to estimate the proportion of adults who have high-speed Internet access. What size...
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 0.58? (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...
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 .05 with 90% confidence if A. She uses a previous estimate of .48? B. She does not use any prior estimates?
A researcher wishes to estimate the proportion of adults who have high-speed Internet access.
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 90% confidence if (a) she uses a previous estimate of 0.46? (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...
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 90 % confidence if (a) she uses a previous estimate of 0.46 ? (b) she does not use any prior estimates? (a) nequals nothing (Round up to the nearest integer.) (b) nequals nothing (Round up to the nearest integer.)
A researcher wishes to estimate the proportion of adults who have high-speed internet access. What size...
A researcher wishes to estimate the proportion of adults who have high-speed internet access. What size sample should be obtained if she wishes to estimate to be within 0.02 with 95% confidence if (a) She uses a previous estimate of 0.38? (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...
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 0.05 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...
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 0.42? (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...
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 0.050.05 with 9090% confidence if a) she uses a previous estimate of 0.36? b) she does not use any prior estimates?
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