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
TEA [102]
3 years ago
15

Plz help me well mark brainliest if correct!!...

Mathematics
2 answers:
marta [7]3 years ago
6 0

Answer:

C) The double step class is in studio A.

Step-by-step explanation:

kodGreya [7K]3 years ago
4 0

Answer:

C

Step-by-step explanation:

The double step class is in studio b

You might be interested in
Find the common ratio of the sequence. 2, –10, 50, –250, –5  1/-5 –12 12
Sholpan [36]
-5
This is just to fill out the space of twenty characters

6 0
3 years ago
Read 2 more answers
Need the answer for x and y
d1i1m1o1n [39]

Answer:

x = 7°

y = 10°

Step-by-step explanation:

7x = 49

x = 7°

180 = 13y + 1 + 49

combine like terms:

13y = 130

y = 10°

8 0
3 years ago
Read 2 more answers
Can any of ya check my answer?
nikitadnepr [17]

Answer:

Your answer is right! It's (-2, 8)

8 0
3 years ago
The volume of a rectangular solid is given by the equation V = l ⋅ w ⋅ h . Find the volume of a box whose dimensions are l = 3 n
scoundrel [369]

3*2*6 is 36 yards cubed or 36 yards to the power of 3.

7 0
3 years ago
Test the hypothesis using the P value approach. Be sure the verify the requirements of the test.
Andreas93 [3]

Answer:

p_v =2*P(z  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion is not significantly different from 0.77.  

Step-by-step explanation:

1) Data given and notation

n=500 represent the random sample taken

X=380 represent the number of people with some characteristic

\hat p=\frac{380}{500}=0.76 estimated proportion of adults that said that it is morally wrong to not report all income on tax returns

p_o=0.76 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportion is 0.7 .:  

Null hypothesis:p=0.77  

Alternative hypothesis:p \neq 0.77  

When we conduct a proportion test we need to use the z statistic, and the is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

The One-Sample Proportion Test is used to assess whether a population proportion \hat p is significantly different from a hypothesized value p_o.

<em>Check for the assumptions that he sample must satisfy in order to apply the test </em>

a)The random sample needs to be representative: On this case the problem no mention about it but we can assume it.

b) The sample needs to be large enough

np_o =500*0.77=385>10

n(1-p_o)=384*(1-0.77)=115>10

3) Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.76-0.77}{\sqrt{\frac{0.77(1-0.77)}{500}}}=-0.531  

4) Statistical decision  

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level provided \alpha=0.05. The next step would be calculate the p value for this test.  

Since is a bilateral test the p value would be:  

p_v =2*P(z  

If we compare the p value and using the significance level given \alpha=0.05 we have p_v>\alpha so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion is not significantly different from 0.77.  

6 0
4 years ago
Other questions:
  • Whats 21 3/4 ÷ 2 1/2 = ???
    6·2 answers
  • What is the total amount of square miles in europe?
    10·1 answer
  • Use properties to rewrite the given equation. Which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p? Select t
    5·2 answers
  • Cars are made in a factory at a rate of 39 cars every 3hours at this rate, how many cars can be made on the factory in 7 hours
    8·1 answer
  • Please help, test due in 2 hours! Will give good review and brainliest.
    8·1 answer
  • What is the answer to <br> -6x+4(-2+8y)- 2y+ 4
    6·2 answers
  • A mptprbpat travels downstream on a river for five hours. The speed of the current is 2km/h. The river flows into a still lake a
    13·1 answer
  • You and your family went to a restaurant. The bill was $74, and you want to leave a 22% tip. What was the tip?
    5·2 answers
  • What is the HCF of two consecutive numbers?
    5·1 answer
  • What is the range of this set of test scores?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!