A researcher studying public opinion of proposed Social Security changes obtains a simple random sample of 25 adult Americans and asks them whether or not they support the propose proportion of adults who respond yes, is approximately normal, how many more adult Americans does the researcher need to sample in the following cases?
(a) 15% of all adult Americans support the changes
(b) 20% of all adult Americans support the changes
(a) The researcher must ask
more American adults. (Round up to the nearest integer.)

Note: remember to show all of the steps that you use to solve the problem. be sure to use the text box where the question mark first appears to show your mathematical work. you can use the comments field to explain your work. your teacher will review each step of your response to ensure you receive proper credit for your answer. ! i will pay you to do this for me! will mark brainliest. i am not lying solve the following problem. jana buys a dress for $25.98 and a for $14.99. the total sales tax is $2.46. a. what is the total cost of her purchase? b. if jana pays with a $50 bill, how much change should she receive?

Somone me i want to know what 18 hours out of 24 hours in a fraction

Solve: 3x+y=6 4x-2y=18 show all work !