1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RideAnS [48]
3 years ago
9

Identify the null and alternative hypothesis in the following scenario. To determine if battery 1 lasts longer than battery 2, t

he mean lasting times, of the two competing batteries are compared. Twenty batteries of each type are randomly sampled and tested. Both populations have normal distributions with known standard deviations Select the correct answer below
Mathematics
1 answer:
Agata [3.3K]3 years ago
8 0

Answer:

H₀: μ ≤ μ  H₁: μ > μ

Step-by-step explanation:

Hello!

If battery 1 lasts longer than battery 2, and all the batteries of population 1 and population 2 are built using the same method, then you could say that the population mean of the lifespans of batteries 1 are longer than the lifespan of batteries 2. Symbolically: μ₁ > μ₂

This would be your alternative hypothesis.

The null hypothesis is:

H₀: μ₁ ≤ μ₂

Then the correct answer is number 5

Looked for exercise's Options

H₀: μ ≥ μ H₁: μ < μ

H₀: μ ≤ -μ  H₁: μ > -μ

H₀: μ ≥ -μ  H₁: μ < -μ

H₀: μ = μ  H₁: μ ≠ μ

H₀: μ ≤ μ  H₁: μ > μ

You might be interested in
2x^3+4x^3 is the same as
Ivanshal [37]

Answer:

6x^3 is the answer

3 0
3 years ago
what is the slop of the like that passes through the points (4,7) and (5,8)? write your answer in simplistic form​
Paladinen [302]

Answer:

slope=1

Step-by-step explanation:

Formula for slope is m =   y2 - y1 /x2 - x1

you will then use 7-8/4-5

Then -1/-1 which will simplify to 1

5 0
3 years ago
The question is attached
Julli [10]
Hope it helpssssss best of luckkkkk

7 0
3 years ago
What is the value of x? Enter your answer in the box. x = ​​ A triangle with vertices labeled as A, B, and C. Side B C is the ba
Savatey [412]

Answer:

x = 5

Step-by-step explanation:

For better explanation of the solution, see the attached diagram of the problem :

The triangle angle bisector theorem states that the line which bisects an angle of a triangle divides the opposite two sides of the triangle in two equal segment which are proportional to the other two sides of the triangle.

Now, from the diagram : AD is the angle bisector angle B

\implies\frac{AB}{AC}=\frac{BD}{CD}\\\\\implies \frac{9}{15} = \frac{(2x-1)}{(3x)}

On Cross multiplication :

⇒ 9 × 3x = 15 × (2x - 1)

Using the distributive property,

⇒ 27x = 15×2x - 15×1

⇒ 27x = 30x - 15

Subtract 30x from each side:

⇒ 27x - 30x = 30x - 15 - 30x

⇒ -3x = -15

⇒ x = 5

7 0
3 years ago
Mark achin sells 3,600 electric motors each year. the cost of these is $200 each, and demand is constant throughout the year. th
Vedmedyk [2.9K]
Summary of information:
total output = 3600 units per year
split into 18 equal orders
cost per order = $40
cost to store a unit for one year = $20
lead time (i.e. storage before shipping) = 5 days

Solution:

quantity split into 18 orders, so 3600/18= 200 units per order.
Order cost = $40 * 18 orders = $720 ..........................(A)
Storage cost:
Each order has 200 units, stored for 5 days = 200*5=1000 unit-days
storage needed for 18 orders = 1000*18 = 18000 unit-days = 50 unit-years
Total storage cost = 50 unit-years * $20 / unit year = $1000...........(B)

Total ordering cost = (A) + (B) = $720+$1000 = $1720


4 0
3 years ago
Other questions:
  • What step do I do next ?
    11·1 answer
  • Rewrite the decimal fraction as a decimal number.
    7·1 answer
  • I cant start the problem but I most likely need the answer HELPPPPPPPPPP
    10·1 answer
  • Point P is located at (−2, 7), and point R is located at (1, 0). Find the y value for the point Q that is located two over three
    5·1 answer
  • Please help ASAP URGENT
    7·1 answer
  • PLEASE HELP ASAP.
    5·1 answer
  • What are the 100 digits of pi?
    6·2 answers
  • Find the slope of the line through each pair of points
    13·1 answer
  • Help me pls<br> composition of functions
    7·2 answers
  • Abc Which type of rhetorical appeal is used when an author attempts to create strong feelings in the audience? O ethos imagery O
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!