Randomly selected statistics students of the author participated in an experiment to test their ability to determine when 60 seconds had passed. Forty students yielded a sample mean of 58.3 seconds. Assume that σ = 9.5 seconds.
a. Find the best point estimate of the meantime for all statistics students. Use the correct symbol.

b. Find the z a/2 for a 78% confidence level. (Don’t do the entire interval – just find the z)

z d/2 = InvNorm (1-0.11) = 1.23 *Show the steps to get this number

c. What is the preferred method of estimation? Point Estimate or Confidence Interval

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

whats the question?

step-by-step explanation:

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

sorry i really don't know what tiles and steps you are referring to

step-by-step explanation: