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
IrinaVladis [17]
3 years ago
12

Conduct a hypothesis test to test the hypothesis that cloud seeding with silver nitrate increases rainfall. Use significance lev

el 0.1. Based on what you observed in answering the previous question, are you confident that this is a valid test? If not, what assumptions are violated?
Do I use the one sample t-test, two sample t-test, or the paired t-test?
Mathematics
1 answer:
Tomtit [17]3 years ago
3 0

Answer:

Paired t-test

Step-by-step explanation:

paired t–test is used  when there is one measurement variable and two nominal variables. The most common design is that one nominal variable represents individual organisms, while the other is "before" and "after" some treatment.

You might be interested in
Barbara made a bad investment. Rather than earning interest, her money is decreasing in value by 11% each week! After just one w
pochemuha

Answer: She started with $160.

It will take 6 weeks before she has less than half of what she originally invested.

Step-by-step explanation:

If her money is decreasing in value by 11% each week, it means that the rate at which it is decreasing is exponential.

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the investment after t weeks.

t represents the number of weeks.

P represents the initial value of the investment.

r represents rate of depreciation.

From the information given,

A = $142.40

r = 11% = 11/100 = 0.11

t = 1

Therefore

142.40 = P(1 - 0.11)^1

142.40 = P(0.89)

P = 142.4/0.89

P = 160

For her to have half of what she invested originally, then

80 = 160(0.89)^t

80/160 = (0.89)^t

0.5 = (0.89)^t

Taking log of both sides to base 10

Log 0.5 = log0.89^t = tlog0.89

- 0.3010 = - 0.051t

t = - 0.3010/- 0.051

t = 5.9

Approximately 6 weeks

5 0
3 years ago
What is 7 1/3 + 5 4/5
Alecsey [184]

Answer:

1.5333333

Step-by-step explanation:

7 1/3 + 5 4/5 = 23/15 =1 8/15 =1.53

4 0
2 years ago
Quotient of 0.72 / 4
sasho [114]

Answer: The answer is 0.18

Step-by-step explanation:

I took the test

5 0
3 years ago
If f(x) = -3x + 4 and g(x) = 2, solve for the value of x for which f(x) = g(x) is true. ​
agasfer [191]

Answer:

-2

Step-by-step explanation:

-3(2)+4

-6+4

-2

5 0
3 years ago
In the refrigerator, Larry found 75% of a pizza. He ate 25% of what was left. HOw much pizza did he eat?
mote1985 [20]

Answer: 25%

Step-by-step explanation:

You said it eight there he at 25%

5 0
3 years ago
Other questions:
  • Describe the piecewise function below by evaluating the function for given values of the domain
    7·1 answer
  • Write an equation of the line with a slope of 0 and y-intercept of 5.
    7·2 answers
  • What set of numbers does -10 belong to
    9·1 answer
  • I will give brainliest and 5 stars if you help ASAP​
    11·1 answer
  • Explain one way to find the area of the polygon at the right. Then find the area in square units.
    8·2 answers
  • . In which of the problems below would applying the multiplicative inverse be the best first step in determining a solution to t
    14·1 answer
  • A certain type of bacteria doubles each day. If there were 101 bacteria to start with, how much bacteria will there be after 11
    10·1 answer
  • 5. If 4 books and 5 pencils cost 56KM, 5 books and 4 pencils
    9·1 answer
  • Find the perimeter and area of the polygon with E(0, 0), F(7, 0), G(7, 2), H(0, 2)
    9·2 answers
  • A stadium has 50,000 seats. Seats sell for $25 in section A, $20 in section B, and $15 in section C. The number of seats in sect
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!