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
Sergeeva-Olga [200]
2 years ago
9

Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. Only half of all m

ice complete one particular maze in less than 18 seconds. A research thinks that a loud noise will cause the mice to complete the maze faster. She measures the proportion of 40 mice that completed the maze in less than 18 seconds with noise as a stimulus. The proportion of mice that completed the maze in less than 18 seconds is . The hypotheses for a test to answer the researcher's question are
a) H0: p = 0.5, Ha: p ≠ 0.5.
b) H0: p = 0.5, Ha: p < 0.5.
c) H0: p = 0.5, Ha: p > 0.5.
Mathematics
1 answer:
nlexa [21]2 years ago
8 0

Answer:

Option c (H0: p = 0.5, Ha: p > 0.5) is the correct option.

Step-by-step explanation:

According to the question,

p = 0.5

  • We must check whether in less than 18 seconds the percentage including all razer mice finish a certain labyrinth is above half, which would be p > 0.5. It's over 1/2 the mouse with much less than 18 seconds to finish the maze.
  • Throughout null H0, humans assert that the percentage of the particular period seems to be equivalent to that specified as well as that beneath theoretical frameworks, this same percentage is always < (less than) or > (greater than) or doesn't equal to the category as per the hypothesis matter.

The other given alternatives aren't related to the given explanation or the conditions. So the above is the right option.

You might be interested in
Which of these characteristics does a rhombus have
iren2701 [21]

Answer: opposite sides with equal length

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Use completing the square to solve the equation x2 - 10x = -8.
Kay [80]

Answer:

x^2 - 10x + 25 = 17

Step-by-step explanation:

Please use " ^ " to denote exponentation:

x^2 - 10x = -8

x^2 - 10x + 25 = 17

x^2 - 10x + 25 = -8

x^2 - 10x - 25 = -33

Begin with x^2 - 10x = -8.  Here's the process for completing the square:

1.  Take half of the coefficient of x and square the result:

    (1/2)(-10) = -5, and then (-5)^2 = + 25

2.  Add this 25 to the first two terms of x^2 - 10x = -8 and also to the      constant -8:    x^2 - 10x + 25 = -8 + 25, or     x^2 - 10x + 25 = 17

3.  Match this result to one of the given possible answers.  Turns out that the given possible answer matching our result is the first one:

x^2 - 10x + 25 = 17

     

7 0
2 years ago
Which expression is equivalent to<br> (2^3)^-5
kvasek [131]

Answer:

(2×2×2)×(2×2×2)×(2×2×2)×(2×2×2)×-(2×2×2)×(2×2×2)

3 0
2 years ago
Jason ran 325 meters farther than Kim ran. Kim ran 4.2 kilometers. how many meters did Jason run?
notka56 [123]
4200= 4.2 km so
4200 + 325= 4525 meters
jason ran 4525 meters
6 0
3 years ago
What is the volume of 5cm 2cm 8cm.
Soloha48 [4]

Answer:

80 cm

Step-by-step explanation:

(5 x 8) x 2

40 x 2

80 cm

5 0
2 years ago
Read 2 more answers
Other questions:
  • Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at a rate of 65
    13·1 answer
  • (x+2)^2+(y-3)^2=183 center and radius
    11·1 answer
  • What is the equation of a line with a slope of -1 and a y-intercept of -5​
    14·1 answer
  • PLEASE PLEASE HELP!!!!. A fish tank, in the shape of a rectangular prism with dimensions 51 centimeters by 39 centimeters by 28
    15·2 answers
  • Suppose that demand, D, for a particular product is given by the function D = 100 - 2p, where p is the price in dollars of the p
    12·1 answer
  • Two sets of data are graphed on the dot plot. What observation can you make about the two data sets? The figure shows a number l
    13·1 answer
  • A rectangular patio is 11 feet by 13 feet. What is the length of the diagonal of the patio?
    12·1 answer
  • Delta DFE sim Delta ACB . What is the length of DE? Diagrams are not drawn to scale.
    12·2 answers
  • 16) One autumn morning the temperature went up from -4OC to 5OC a) By how many degrees did the temperature rise? During the afte
    14·1 answer
  • Help please I don’t know what to do
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!