A researcher wishes to estimate, with 90% confidence, the population proportion of adults who think Congress is doing a good or excellent job. Her estimate must be accurate within 3% of the true proportion. (a) No preliminary estimate available. Find the minimum sample size needed. (b) Find the minimum sample size needed, using a prior study that found that 32% of the respondents said they think Congress is doing a good or excellent job. (c) Compare the results from parts (a) and (b). (a) What is the minimum sample size needed assuming that no prior information is available? n= (Round up to the nearest whole number as needed.)

Q: Solve. m =n/2-n  for n

A:

Q: A bakery sells chocolate cakes that cost $12 to produce. The overhead cost to run the bakery is…

A: Given  Cost price of cake C=$12 Overhead cost V=$200 Number of chocolates sold x=100

Q: solve for w. 3w2+7w+4

A:

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A: In the given diagram, we see that the measure of the indicated angle ( ) is .

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A: For the fraction, pq, the numerator is p and the denominator is q. If two fractions with same…

Q: a̟ = 48 and a = 24 Find a,

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Q: B. Solve for X D

A:

Q: Solve for N 3n + 8= 20

A: Given, Solve for n 3n +8 = 20

Q: Solve for 2: 1 52 1 3 5 x + 3 5

A: