Find the standard error of the mean for each sampling situation (assuming a normal population). Standard Error (a) σ = 42, n = 9 (b) σ = 42, n = 36
Find the standard error of the mean for each sampling situation (assuming a normal population).
Standard Error (a) σ = 42, n = 9 (c) σ = 42, n = 144

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account