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
Dmitrij [34]
3 years ago
9

Experiments on learning in animals sometimes measure how long it takes mice to find their way through a maze. The mean time is 1

8 seconds for one particular maze. A researcher thinks that a loud noise will cause the mice to complete the maze faster. She measures how long each of 10 mice takes with a noise as stimulus. The appropriate hypotheses for the significance test are (a) $$H_0: \mu = 18; H_a: \mu \neq 18.$$ (b) $$H_0: \mu = 18; H_a: \mu > 18.$$ (c) $$H_0: \mu < 18; H_a: \mu = 18.$$ (d) $$H_0: \mu = 18; H_a: \mu < 18.$$ (e) $$H_0: \overline{x} = 18; H_a: \overline{x} < 18.$$
Mathematics
1 answer:
Nuetrik [128]3 years ago
8 0

Answer:

attached

Step-by-step explanation:

attached

Download docx
You might be interested in
A dollar bill is 15.5 cm long and 6.5 cm wide. What is the area of<br> a dollar bill?
Shtirlitz [24]

Answer:

I believe the answer is 100.75cm

5 0
3 years ago
Aislinn bought a new car. After 8 months, the odometer read 14,010 miles. How many miles did
UNO [17]

d) Aislinn's average per month on her car is 1,751 miles per month.

<h3>How to find the average speed?</h3>

The average speed is calculated by dividing the total distance traveled by the total time it took to travel that distance. Speed is the rate at which something moves at any given time.

Average speed is the average rate of speed over the course of a journey. Velocity exists as the directional speed of a moving object as an indication of its rate of change in position as observed from a specific frame of reference and measured by a specific time standard.

Given,

After 8 months, the odometer read 14,010 miles.

Solution:

t = 8,

d =  14,010 miles,

s = ?

s = d/t

s =  14,010/8

s = 1751 miles/month.

Aislinn drove an average of 1,751 miles per month.

To learn more about average, refer

brainly.com/question/130657

#SPJ9

7 0
1 year ago
WILL AWARD BRAINLIEST ANSWER
Tpy6a [65]

Answer:

(x - 5)^2 + (y - 7)^2 = 13^2

or

(x - 5)^2 + (y - 7)^2 = 169

Step-by-step explanation:

Well, the center origin of the circle is given (h,k) =  (5,7).

We have to find our radius as they gave us a point. from origin to the edge of the circle.

Using the formula: (x - h)^2 + (y - k)^2 = r^2

Plug in our (h,k) = (5,7) and (x,y) =  (10,19) to solve for radius.

(x - h)^2 + (y - k)^2 = r^2

(10 - (5))^2 + (19 - (7)^2 = r^2

(5)^2 + (12)^2 = r^2

25 + 144  = r^2

r^2 = 169

r = 13

5 0
2 years ago
Please answer ASAP and if you do you will get Brainliest. Catherine buys a gallon of ice cream from the store. After taking it h
rodikova [14]

Answer:

Catherine's sister ate 2/15 gallons of the ice cream.

\displaystyle \frac{2}{15}.

Step-by-step explanation:

Let x be the amount of ice cream that Catherine's sister ate, in gallons.

  • Original amount: 1 gallon.
  • What Catherine ate: \displaystyle \frac{1}{5} gallons.
  • What Catherine's sister ate is assumed to be x gallons.
  • What's left: \displaystyle \frac{2}{3} gallons.

Consider the relationship:

\text{Original amount - What Catherine ate - What Catherine's Sister ate}\\ =\text{ What's left.}.

That is:

\displaystyle 1- \frac{1}{5} - x = \frac{2}{3}.

Add x to both sides of this equation:

\displaystyle 1 - \frac{1}{5} = \frac{2}{3} +x

Substract \displaystyle \frac{2}{3} from both sides:

\displaystyle 1 - \frac{1}{5} - \frac{2}{3} = x.

Convert the denominator of all three numbers on the left-hand side to 3 \times 5 = 15

\displaystyle \frac{15}{15} - \frac{3}{15} - \frac{10}{15} = x.

\displaystyle x = \frac{2}{15}.

In other words, Catherine's sister ate \displaystyle \frac{2}{15} gallons of the ice cream.

3 0
3 years ago
Read 2 more answers
Round to the nearest hundredth : 3.2649
Bas_tet [7]

Answer:

3.26

Step-by-step explanation:

Rounding to the nearest hundredth means round to the nearest two decimal places.

To do this, all we need to look at is the 3rd decimal place.

Since 4 is not 5 or greater, that means we must round down, no matter how close it is to 5.

Therefore, the answer should just be 3.26

3 0
3 years ago
Read 2 more answers
Other questions:
  • Two cars leave towns 400 kilometers apart at the same time and travel toward each other. One car's rate is 14 kilometers per hou
    15·1 answer
  • What is the distance between the points (15,26), (7,20)
    6·1 answer
  • Pls help mee I need help one this it's hard
    10·1 answer
  • The graph of the function B is shown below. Find B(2),<br> 0.1<br> 01<br> 02
    8·1 answer
  • Which of the two functions below has the largest maximum y-value?
    9·2 answers
  • What is the consumer's ability and desire to buy goods and services called? A. supply B. demand C. equilibrium
    11·2 answers
  • What is 2/3 divdided by 1/6
    10·2 answers
  • Simply please quickly
    13·1 answer
  • A quadratic function
    11·1 answer
  • The sum of two consecutive integers is -15.If 1 is added to the smaller integer and 2 is subtracted from the larger integer,what
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!