The mean collection period for accounts receivable at Ephemeral Products is 16.3 days with a standard deviation of 4.8 days. (a) What is the standardized z-score for an account that is paid in 30 days

2.85

Step-by-step explanation:

The z score is a score in statistics used to determine by how many standard deviations the raw score is above or below the mean. If the raw score is above the mean then the z score is positive while if the z score is negative then the z score is negative. The z score is given by:

"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.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: