Suds-a-Lot conducted a study that showed 97% customer satisfaction, with a standard deviation of 1%. The sample

included 25 people who appeared in one of their

commercials, during the past 5 years.

Feel Fresh conducted a study that showed 90% customer

satisfaction, with a standard deviation of 4%. The random

sample consisted of 100 people, who had recently

purchased one of their products.

Which of the company claims is more believable and why?

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

they charge the same amount at 20 minutes.

step-by-step explanation:

the correct answer is 1.7