Suppose a company finds that the mean number of sick days used per year by their employees is 7 days with a standard deviation of 2 days. In a random sample of 180 employees the mean number of sick days used per year was 6.8 days. (a) Give the parameter and the statistic. Don't forget that your answer should be in contert! (b) What is the probability that in a sample of 180 employees the mean number of sick days used per year is less than or equal to 6.8 days? (c) Suppose the company enacts a new policy where it pays time and a half for each unused sick day. A year after the policy was in place, the company took a random sample of 100 employees and found that the mean number of sick days used is 6. Does it seem like the policy affected the employees use of sick days? Be sure to mathematically support your claim!

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

i need the options

step-by-step explanation:

answer: 414,377,008

step-by-step explanation:

just multiply it

(1, –1), (16, –4), (36, –6)

step-by-step explanation:

given that the function is

this can also be written as

we have to graph this function and check which list of points lie on the graph

see attachment for graph:

we find that the points lying are (1,-1) (16,-4) and (36,-6)

since square root is there we find that x can only be posiitve but y can be since square root both positive and negative.