A company claims that the mean monthly residential electricity consumption in a certain region is more than 870 kiloWatt-hours (kWh). You want to test this claim. You find that a random sample of 70 residential customers has a mean monthly consumption of 890 kWh. Assume the population standard deviation is 126 kWh. At a=0.01, can you support the claim? Complete parts (a) through (e). (a) Identify Ho and H. Choose the correct answer below. A. Ho: HS870 OB. Ho: u>870 (claim) H:us870 H:u>870 (claim) O C. Ho: = 870 (claim) ΟD. H μα 890 Hu890 (claim) H: p+870 OE Ho: HS890 OF Ho: >890 (claim) H:u> 890 (claim) Hus 890 (b) Find the critical value(s) and identify the rejection region(s). Select the correct choice below and fill in the answer box within your choice. Use technology. (Round to two decimal places as needed.) O A. The critical values are t

Q: の)12xei) メール

A: Instructions was  not written in English language but still we have solved your question. See the…

Q: Differentiate e6x5 + 4x3 - 11x2 + 17x + 1

A: Given that a function of x and we differentiate of this function with respect to x. Here we use…

Q: 6z-82

A: According to question we have to solve given expression 6z-8<4 for z6z - 8 < 4 add both side…

Q: chairs and 3 tables cost 2100 and 5 chairs

A:

Q: 9×(20+40) =?

A: Given  9×(20+40)

Q: product of seven and a number increased by six is 98

A:

Q: A designer is updating a bedroom in a house and wants to put up some high quality wall paper on all…

A: The four walls of the room will be like four rectangles, There will be two rectangles of dimensions…

Q: 4. 1 Зх + 2

A:

Q: how did you get 17 and 21 to be multiplied in step 2?

A: In Step 2, 17 and 21 are not multiplied. It is 17.21. The value of skin surface area of the person…

Q: y? = 4sinx + 3x²

A: Given function is                                                  y2=4sinx+3x2 Derivative of the…

Q: Xy +Sx+5?= 2

A:

Q: X+6

A:

Q: 3. L:5

A: 3x-12=5

Q: What is 6x=8x

A: Equation and it value

Q: Find the number of ways to break a group of 12 people into 3 classrooms, no empty classrooms.

A: Solution

Q: メニスX+3oX

A: I have provided a solution in detail in step 2.

Q: 2/4/5 divided by 2/1/3

A:

Q: 2+6-8+8x5=

A: Given query is to find the value of the expression.

Q: -X olx *2+2x+.

A:

Q: why 1+1= 2?

A: To Prove: Why 1 + 1 = 2

Q: Explain how to add V3 + V12.

A: Square root function is teh function which is represented by  f(x)=x ,x ∈ [0,∞) Function is the…

Q: イメ+4 メイメナ) (1+

A:

Q: Simplify  3-1/y-5/4/y-5

A: Observe the following fact.

Q: 9=4+(-y)

A: Given  9=4+(-y)

Q: 5\4p=4/3p+5/2

A:

Q: Evaluate 2x2 +1+2/ dr.

A: First we distribute the x and write using exponents.

Q: ferent ways could you schedule your free t

A: Given: Total number of hours, n = 7 hours Free time, r = 4   Use combination here, the formula is as…

Q: 18x-23 Jan?-24 4416 -244+16

A:

Q: 40 miles in 16 hours. Ho

A: Introduction: The division is a basic arithmetic operation in which a larger number is divided into…

Q: Simplify (5x/y4)-2

A: Given, 5xy4-2

Q: Explain how to simplify V10- V5.

A: One of the property of a square root function is :a.a=a2=aAlso, a.b=b.a  (commutative property)So,…

Q: ースタ 3x t5

A: the given expression is: we have to simplify the given expression.

Q: 3 3 -%=D= x+2 |

A:

Q: what is 3-4x=5

A:

Q: why is the one on the left? and why does it go after 2 instead of 3?

A:

Q: メャメー5=0

A: Given equation is x2+x-5=0find the roots