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
Find the probability of rolling factors of 4 on both dice
Hitman42 [59]

Answer:

8.333

Step-by-step explanation:

8 0
3 years ago
What is the awnser to this question
Alborosie

Answer is A and C because they equal to 3(10-c)

4 0
3 years ago
A city bus collected $780 in fares on one day.
Brilliant_brown [7]

Answer:

450 people paid the discounted fare and 750 people paid the regular fare.

Step-by-step explanation:

let r be regular fares paid and d be discounted fares paid

Total fares = 0.8r + 0.4d = 780

Since 1200 people paid the fares,

r + d = 1200 = Total people

Rearrange this formula:

r = 1200 - d

Substitute r into Total Fares formula

Total fares = 0.8r + 0.4d

780 = 0.8(1200-d) + 0.4d

780 = 960 - 0.8d + 0.4d

780 = 960 - 0.4d

0.4d = 180

d = 450

Sub d=450 into Total people formula

r + d = 1200 = Total people

r + 450 = 1200

r = 1200-450

r = 750

450 people paid the discounted fare and 750 people paid the regular fare.

3 0
3 years ago
Read 2 more answers
I NEED MAJOR HELP ON THESE QUESTIONS!!!
Oliga [24]
On the bottom left, the answer is subtraction property of equality because you need to subtract 4x to the 7x to simplify the equation.
4 0
3 years ago
Help me. Please due today
Schach [20]

Answer:

2). As x-> -∞, f(x)->∞

    As x-> ∞, f(x)-> -∞

5). As x-> -∞, f(x)-> -∞

    As x-> ∞, f(x)-> ∞

3). As x-> -∞, f(x)-> -∞

    As x-> ∞, f(x)-> ∞

6). As x-> -∞, f(x)-> ∞

    As x-> ∞, f(x)-> ∞

Step-by-step explanation:

I just watched a quick video so you can't completely trust me, but i tried my best. Hopefully someone more trustworthy for this comes in.

6 0
3 years ago
Other questions:
  • A driver is going to drive 100 miles. if they drive the first 50 miles at 50 miles per hour, how fast do they have to drive the
    11·1 answer
  • A supermarket charges $4.50 for 8 cans of cat food. At the same rate, how much would the supermarket charge for 28 cans of cat f
    14·2 answers
  • The set<br> of whole number less than 20
    10·2 answers
  • How do you solve equations like this: 7 5/6? can someone explain it? <br> (7 5/6 is just an example)
    10·2 answers
  • Massimo spent $90 riding the bus. Each bus ride cost $2.50. Write and solve an equation to determine how many times Massimo rode
    11·2 answers
  • Which word best describes a set of 3 or more different points that are all on the same line.
    7·2 answers
  • Pls help i will give brainliest
    10·1 answer
  • Hii please help, if you give a correct answer with explaining I’ll give Brain liest or whatever it’s called :)
    9·2 answers
  • Factor2(to the power of 2)+5x−3
    12·2 answers
  • What’s the answer for this…<br><br><br> Solve for p<br><br> 2p + 3 &gt; 2 (p – 3)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!