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
OverLord2011 [107]
3 years ago
13

You are interested in determining which of two brands of light bulbs, brand A and brand B, lasts longer under differing conditio

ns of use. Fifty Bovano lamps are fitted with brand A light bulbs and 50 Bulbrite lamps are fitted with brand B light bulbs. Each light bulb is left on for 20,000 hours straight. Light bulb life is then measured for each bulb, and the average light bulb life for the two brands is compared. What is wrong with this experimental design?
Nothing is wrong with this design.
The type of lamp is a confounding variable.
Not enough light bulbs of each type are used in the study.
The experiment should have been conducted on more than two brands of lamps.
Mathematics
2 answers:
bulgar [2K]3 years ago
7 0

Answer:

The type of lamp is a confounding variable.

Step-by-step explanation:

to test the average life of the bulbs the same lamps should be used

Fofino [41]3 years ago
5 0

Answer:

The answer would be A. 1 1/5

Hope this helps!!!

Step-by-step explanation:

You might be interested in
What is the equation parallel to y=5 and y-intercept= -3? pls lemme know asap
WARRIOR [948]

Answer:

it might be y = -3

Step-by-step explanation:

cause y=5 is just a line. do u know the slope?

6 0
3 years ago
What is the range of the graph
sammy [17]

Answer: The range is [3, infinity).

Step-by-step explanation: The "[" means that it is apart of the graph. The ")" means it is not apart of the graph.

The graph's range (which is it's highest lowest to highest y-value), the lowest is 3 on the y axis, and then stems on to infinity. The reason why infinity is not apart of the graph is because it has no end and infinity is not a number.

4 0
2 years ago
HELPPPPPPPPPPPPPPPPppppppppp PLEASE HELP ME
Basile [38]

All the steps arranged in the attachment!

6 0
3 years ago
Read 2 more answers
A game has 3 possible outcomes, with probabilities p1, p2, and p3. The amount of money that you will win or lose for each outcom
Monica [59]
We have the following given
p1 - probability for outcome 1
p2 - probability for outcome 2
p3 - probability for outcome 3
v1 - amount of money that you will win or lose for outcome 1
v2 - amount of money that you will win or lose for outcome 2
v3 - amount of money that you will win or lose for outcome 3

Therefore,
p1v1 + p2v2 + p3v3 is the average money you win or lose in playing the game.
8 0
4 years ago
jacobs job pays him $12.50 per hour which equation can be used to find jacobs salary ,y,if he works for x hours ?
g100num [7]

Y = 12.5x Hope this helps!

4 0
3 years ago
Other questions:
  • Please help! (Will give brainliest answer and hearts) Thank you and have a nice day!
    6·1 answer
  • The diagonal of a square is 15 inches. find the area of the square
    13·1 answer
  • Write the equation of a line that is perpendicular to y= -1 and passes through the point (8,-4)
    13·1 answer
  • Using the completing-the-square method, find the vertex of the function f(x) = 5x2 + 10x + 8 and indicate whether it is a minimu
    11·1 answer
  • Composite functions✨
    10·1 answer
  • Identify the vertex of the graph. Tell whether it is a minimum or maximum.
    13·1 answer
  • $4.30 makeup; 40% discount; 6% tax
    5·1 answer
  • Robert's monthly bank statement showed the following deposits and withdrawals: -−$113.24, $98.07, -−$18.74, -−$98.17, $37.13 If
    15·1 answer
  • You have 2 different savings accounts. For Account​ A, the simple interest earned after 9 months is ​$5.70. For Account​ B, the
    10·1 answer
  • Giving extra points if you can answer
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!