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 0.42? b) she does not use any prior estimates? ... a) n = (Round up to the nearest integer.) b) n = (Round up to the nearest integer)
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- For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.A random sample of 5100 permanent dwellings on an entire reservation showed that 1613 were traditional hogansThe mean weight of male nurses working at a local hospital is less than 178 lbs. Express the null and alternative hypotheses in symbolic form for this claim.H0:μH0:μ =Ha:μHa:μ=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 used 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 samples should be obtained if she wishes the estimate to be within 0.02 with 90% confidence if A) She was a previous estimate of 0.32? B) She does not use any prior estmates?For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. A random sample of 5,000 permanent dwellings on an entire reservation showed that 1,690 were traditional hogans.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 0.56 ? ( b) she does not use any prior estimates ?
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