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
timofeeve [1]
3 years ago
8

Researchers were investigating whether there is a significant difference between two medications, R and S, designed to reduce fl

eas found on cats. From a sample of 300 cat owners, the researchers randomly assigned 150 cat owners to use medication R on their cats and the remaining cat owners to use medication S. For the cats using medication R, 88 percent had no fleas. For the cats using medication S, 90 percent had no fleas. Which of the following is the most appropriate method for analyzing the results?
A two-sample z -test for a difference in population proportions

A two-sample z-test for a difference in sample proportions

A one-sample z-test for a sample proportion

A one-sample z-test for a population proportion

A one-sample z-test for a difference in sample proportions
Mathematics
2 answers:
Assoli18 [71]3 years ago
6 0

Answer:

A) A two-sample  z -test for a difference in population proportions

Step-by-step explanation:

To determine whether a difference in proportions is significant, the two-sample z-test for a difference in population proportions is the most appropriate method for the analysis.

Gemiola [76]3 years ago
4 0

Answer:

a

Step-by-step explanation:

trust me

You might be interested in
( BRAINLIEST QUEATION)
mr Goodwill [35]

Answer:

Step-by-step explanation:

Weight decreased = 108 - 88 =  20 Kg

Percentage decrease = \frac{20}{108}*100

                   = 18.52%

3 0
3 years ago
Explain how to solve -4(1.75 + x) =18
kobusy [5.1K]

Answer:

first change any decimal to a whole. -4(175+x)=18. Then times -4 by 175 and x, -700+ 4x =18. Then add +700 to -700 which equals just 4x ,then add +700 to 18, which is 4x = 718. then divide both sides by 4 and estimate. x= 180

Step-by-step explanation:

8 0
3 years ago
What object is considers two dimensional because it only has length and width
Karolina [17]
An example of a two dimensional object is a price of paper or a drawn figure on a paper because it has no height or depth
5 0
3 years ago
A cleaning company charges a fee of &65 in addition to $10.50 per hour of cleaning, let x represent the number of hours clea
photoshop1234 [79]
Fee of $65
$10.50 per hour

'x' represents hours

Therefore we have:

y = 10.50x + 65

Because 10.50 is the cost per hour, and x represents hours, so we put these together. 65 is a one-time fee, so we just add it on.
3 0
3 years ago
Find the area of the trapezoid below.
spin [16.1K]

Answer: 72 9 times 8 is 72

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation of the line that passes through the points (0,4)(0,4) and (2,10)(2,10). $y=
    11·1 answer
  • What is 300,000,000,000+1,000,000,000+70,000+400+9
    13·1 answer
  • Help fast pls and give me the steps pls<br> n+22-15=-2
    11·1 answer
  • The integer -3 would BEST represent which of these events? A) I only B) III only C) I and III only D) II and III only im g
    14·2 answers
  • Convert from rectangular to polar coordinates:Note: Choose r and θ such that r is non-negative and 0 ≤ θ &lt; 2πa. (6,0)b. (9,9/
    13·1 answer
  • Consider a binomial distribution of 200 trials with expected value 80 and standard deviation of about 6.9. Use the criterion tha
    5·1 answer
  • Is y = 3x+4 and y=3x-5 parallel, perpendicular or neither?
    6·2 answers
  • Is the given value a solution to the equation? 4(n) - 3 = -2(n) + 9 n=2
    11·1 answer
  • What restrictions are there on the range of the function H(w) below?
    15·1 answer
  • A case of water costs $3.84 and contains 24 bottles of water. Determine the cost of each bottle of water.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!