Exercise 8-42 (Algo) (L08-5) Human Resource Consulting (HRC) surveyed a random sample of 80 Twin Cities construction companies to find information on the costs of their health care plans. One of the items being tracked is the annual deductible that
employees must pay. The Minnesota Department of Labor reports that historically the mean deductible amount per employee is $505 with a standard deviation of 5105 (Round your z value to 2 decimal places and final
answers to 4 decimal places. Leave no cells blank-be certain to enter "" it required.)
a. Compute the standard error of the sample mean for HRC.
Standard error
b. What is the chance HRC finds a sample mean between 5477 and $527?
Probably
c. Calculate the likelihood that the sample mean is between $492 and $512
Probability
d. What is the probability the sample mean is greater than $5507
Probably

i believe a. 12x≥120 is the answer

answer: graph 2

step-by-step explanation:

the speed is   miles per hour > is false

step-by-step explanation:

we know that  

a relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form or

in a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

the graph shown in the figure represent a direct variation

the slope of the line represent the speed

for the point

substitute the values of x and y

the linear equation is equal to

statements

case a) it takes hours to go miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct

case b) the speed is   miles per hour

the statement is false

because the speed is

case c) the unit rate for the trip is

the statement is true

because the speed is equal to the slope of the linear equation

case d) it took minutes to go the first miles

the statement is true

because

substitute

for

find the value of y in the linear equation

> is correct