Cameron is a member of a national gardening club. She asked 200 of her fellow members whether they use compost to fertilize their plants, and 45% responded favorably.
What is the 90% confidence interval for the true proportion of club members who use compost?
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The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this