A researcher for the U. S. Department of the Treasury wishes to estimate the percentage of Americans who support abolishing the penny. What size sample is necessary to estimate the proportion with 95% confidence of being within 3% of the true proportion.

A researcher for the U.S. Department of the Treasury wishes to estimate the percentage of Americans who support abolishing the penny. What size sample is necessary to estimate the proportion with 95% confidence of being within 3% of the true proportion.

i. The value for z α / 2to use in the formula is [ Select ] ["2.33", "1.645", "2.575", "1.96", "0.95"] .

ii. The value for E to use in the formula is [ Select ] ["0.03", "0.5", "0.95", "3"] .

iii. Using the answers to parts (i) and (ii), the correct sample size is [ Select ] ["4268.4", "4269", "1068", "1067.11", "0.1067", "1067", "4268"] .

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

probably the last option

step-by-step explanation: