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1. A random sample of size 49 was selected; the resulting sample standard deviation s = 7.829. Suppose the confidence interval formed for ? was 63
[a] What is the sample mean x ?
[b] What is the standard error of the mean X ?
A study reposted that 48% of American adults take at least two sick days per year when they are not really sick. In a random sample 30 of American adults:
If an open box has a square base and a volume of 106 in.3 and is constructed from a tin sheet, find the dimensions of the box, assuming a minimum amount of material is used in its construction.
Find the work required to empty the tank by pumping the hot chocolate over the top of the tank. Note: the density of hot chocolate is delta = 1500 kg/m^3
The lengths of the sides of a triangle are y, y+1 and 7 centimeters. If the perimeter is 56 centimeters, what is the value of y?
Using what you know about t-scores, identify which of the variables have a significant influence on the LISTPRICE.
Find the volume of the tank. Find the depth of the water in the tank if it is 3/4 full (by volume) and the truck is on level ground.
A 1024 × 768 image is displayed, noninterlaced, at a rate of thirty frames per second.
A motorboat travels 356 miles in 4 hours going upstream and 357 miles in 3 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
Find the velocity of the ball at time t. What is the sign of the velocity? Why is this expected? When does the ball hit the ground?
Find n! For n equal to each of the first ten positive integers and use mathematical induction to prove that x - y is a factor of xn - yn, where x and y are variables.
A square garden plot measures 125 square feet. a second square garden plot measures 405 square feet. how many more feet of fence will the second garden plot require over that required for the first garden plot.
a scale drawing has a scale of 1/4 in.: 6 ft. Find the length on the drawing for each actual lenght. 18 ft, 66 ft, 204 ft.
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