Abusiness claims that the mean time that customers wait for service is at most 5.9 minutes. write the null and alternative hypotheses and note which is the claim.

The hypothesis test is a tool that allows you to test the probability of occurrence of a given event, for this two possible scenarios are formulated, the alternative hypothesis that is the one posed by the researcher or that has thrown the investigation, and the null hypothesis that is the opposite scenario to which you want to try.

In this case, as the company affirms that the average duration of the waiting time for customers t is at most 5.9 minutes, that is, , this will be the alternative hypothesis, the one that will be demonstrated, So the null hypothesis is the opposite, that is, the waiting time is greater than 5.9  minutes.

Answer

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base