The average annual cost of the first year of owning and caring for a large dog is $1843 (us news and world report, september 9, 2013). the irish red and white setter association of america has requested a study to estimate the annual first-year cost for owners of this breed. a sample of 50 will be used. based on past studies, the population standard deviation is assumed known with s = $255. a. what is the margin of error for a 95% confidence interval of the mean cost of the first year of owning and caring for this breed? b. the datafile setters contains data collected from fifty owners of irish setters on the cost of the first year of owning and caring for their dogs. use these data data set to compute the sample mean. using this sample, what is the 95% confidence interval for the mean cost of the first year of owning and caring for an irish red and white setter?

there are no short passages to look at

$35.59 in pounds

step-by-step explanation:

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.