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
Ivanshal [37]
3 years ago
14

PLSSSSSS HELP MEE ASAP

Mathematics
1 answer:
schepotkina [342]3 years ago
7 0

Answer:

What's the question?

Step-by-step explanation:

Your struggling with

You might be interested in
A family needs to cross a river in a small raft.
serg [7]

Answer:

so basically you can take more than one trip you can take the mother and the bag at the same time

Step-by-step explanation:

and then you can get the daughter in the son at the same time and then for the final trip you take the father by himself

8 0
2 years ago
In the book Essentials of Marketing Research, William R. Dillon, Thomas J. Madden, and Neil H. Firtle discuss a research proposa
MakcuM [25]

Answer:

Null hypothesis:p_{1} = p_{2}  

Alternative hypothesis:p_{1} \neq p_{2}  

z=\frac{0.179-0.15}{\sqrt{0.17(1-0.17)(\frac{1}{140}+\frac{1}{60})}}=0.500  

p_v =2*P(Z>0.500)=0.617  

So the p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the two proportions NOT differs significantly.  

Step-by-step explanation:

Data given and notation  

X_{1}=25 represent the number of homeowners who would buy the security system

X_{2}=9 represent the number of renters who would buy the security system

n_{1}=140 sample 1

n_{2}=60 sample 2

p_{1}=\frac{25}{140}=0.179 represent the proportion of homeowners who would buy the security system

p_{2}=\frac{9}{60}= 0.15 represent the proportion of renters who would buy the security system

z would represent the statistic (variable of interest)  

p_v represent the value for the test (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the two proportions differs , the system of hypothesis would be:  

Null hypothesis:p_{1} = p_{2}  

Alternative hypothesis:p_{1} \neq p_{2}  

We need to apply a z test to compare proportions, and the statistic is given by:  

z=\frac{p_{1}-p_{2}}{\sqrt{\hat p (1-\hat p)(\frac{1}{n_{1}}+\frac{1}{n_{2}})}}   (1)  

Where \hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{25+9}{140+60}=0.17  

Calculate the statistic  

Replacing in formula (1) the values obtained we got this:  

z=\frac{0.179-0.15}{\sqrt{0.17(1-0.17)(\frac{1}{140}+\frac{1}{60})}}=0.500  

Statistical decision

For this case we don't have a significance level provided \alpha, but we can calculate the p value for this test.    

Since is a two sided test the p value would be:  

p_v =2*P(Z>0.500)=0.617  

So the p value is a very low value and using any significance level for example \alpha=0.05, 0,1,0.15 always p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can say the two proportions NOT differs significantly.  

6 0
3 years ago
Write these nums in order from least to greatest.
Studentka2010 [4]
The answer TO your question is the sequence B
4 0
3 years ago
What is the domain of the function?
Mazyrski [523]

Answer:     The answer is <em><u>-2</u></em>

Step-by-step explanation:

that is where the line starts

hope this helped

6 0
3 years ago
Read 2 more answers
Need help with this problem
Anika [276]

Answer:

x=48

Step-by-step explanation:

32+4=36+12+x=48

solve for x

x=48

7 0
3 years ago
Other questions:
  • Make p the subject of the formula q-2p=p+4
    9·1 answer
  • Can a right triangle be formed using these squares
    15·1 answer
  • How can you check the correctness of a division answer that has no remainder?
    10·1 answer
  • Max has a monthly salary of $1,100 and also earns 7.5% commission on his sales. If Max had $43,000 in sales last month, what wer
    7·2 answers
  • Choose the number sentence that shows the identity property of addition. A. 45 = 0 + 45 B. 90 = 45 + 45 C. 46 = 1 + 45
    13·1 answer
  • What is the value of x?
    11·1 answer
  • Complete Ratio table
    6·2 answers
  • Round the following 25.635 to 2 d.p <br><br>315.239 to 1 dp<br><br>0.3975 to 3dp <br>14.989 to 1 dp
    13·1 answer
  • Which algebraic expression has a term with a coefficient of 3? A -5y-7 B 3y+1 c 3(y-6) D-2y+5+3
    14·1 answer
  • Find the next 3 terms in the arithmetic sequence: -10, -14, -18, -22....
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!