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
Leya [2.2K]
2 years ago
5

Minnesota had the highest turnout rate of any state for the 2012 Presidential election (United States Election Project website,

February 9, 2013). Political analysts wonder if turnout in rural Minnesota was higher than turnout in the urban areas of the state. A sample shows that 663 of 884 registered voters from rural Minnesota voted in the 2012 Presidential election, while 414 out of 575 registered voters from urban Minnesota voted.A. Formulate the null and alternative hypotheses that can be used to test whether registered voters in rural Minnesota were more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election.1. H0: prural purban2. Ha: prural purbanB. What is the proportion of sampled registered voters in rural Minnesota that voted in the 2012 Presidential election?C. What is the proportion of sampled registered voters in urban Minnesota that voted in the 2012 Presidential election?D. At = .05, test the hypothesis. What is the p-value, and what conclusion do you to draw from your results?
Mathematics
1 answer:
vlada-n [284]2 years ago
7 0

Answer:

Explained below.

Step-by-step explanation:

In this case we need to determine whether registered voters in rural Minnesota were more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election.

(A)

The hypothesis can be defined as follows:  

<em>H</em>₀: The registered voters in rural Minnesota were not more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election, i.e. p_{rural} - p_{urban}\leq  0.  

<em>Hₐ</em>: The registered voters in rural Minnesota were more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election, i.e. p_{rural} - p_{urban}>  0.  

(B)

Compute the proportion of sampled registered voters in rural Minnesota that voted in the 2012 Presidential election as follows:

\hat p_{rural}=\frac{663}{884}=0.75

(C)

Compute the proportion of sampled registered voters in urban Minnesota that voted in the 2012 Presidential election as follows:

\hat p_{urban}=\frac{414}{575}=0.72

(D)

Compute the total proportion as follows:

\hat p=\frac{663+474}{884+575}=0.74

Compute the test statistic value as follows:

Z=\frac{\hat p_{1}-\hat p_{2}}{\sqrt{\hat p(1-\hat p)\times [\frac{1}{n_{1}}+\frac{1}{n_{2}}]}}

   =\frac{0.75-0.72}{\sqrt{0.74(1-0.74)\times [\frac{1}{884}+\frac{1}{575}]}}\\\\=1.28

The test statistic value is 1.28.

The decision rule is:

The null hypothesis will be rejected if the p-value of the test is less than the significance level.

Compute the p-value as follows:

p-value=P(Z>1.28)=1-P(Z

The p-value of the test is quite large. The null hypothesis will be rejected at 0.05 significance level.

Thus, there enough evidence suggesting that the registered voters in rural Minnesota were more likely than registered voters in urban Minnesota to vote in the 2012 Presidential election.

You might be interested in
The quotient of the opposite of a number squared and three
Mars2501 [29]

Answer:

"The quotient of the opposite of a number squared and 3"  

Take "the opposite of a number squared" and call it y.  

So you get "The quotient of y and 3"  

This is y/3.  

Now what is y? "The opposite of a number squared"  

Take "The opposite of a number" and call it z.  

So y is "z squared"  

Replacing y, we get z^2 / 3  

But what is z? "The opposite of a number"  

Call "a number" x.  

The opposite of x is -x.  

So z is "-x"  

Replacing z, we get (-x)^2 / 3



8 0
3 years ago
How many 1-inch cubes will fit into a 3 and 1/2 in rectangular prism?
alexandr402 [8]
Suppose the height of the prism is 1 in, then the volume will be:
volume=length×width×height
thus
volume of the prism will be:
V=3×1/2×1
V=1.5 in³

Volume of the cube will be:
v=1×1×1=1 in³
Thus the number of cubes that will be in the prism will be:
(1.5 in³)/(1 in³)
=1.5 cubes~2 cubes
7 0
3 years ago
Simplify.<br> 43 – 2<br><br> A<br> 10<br> B<br> 41<br> C<br> 62<br> D<br> 79
Zarrin [17]

the correct answer is, B.

41

8 0
2 years ago
Suppose that a restaurant chain claims that its bottles of ketchup contain 24 ounces of ketchup on average, with a standard devi
Tanya [424]

Answer:

Confidence Interval = (23.776, 24.224)

Step-by-step explanation:

Restaurant chain claims that its bottles of ketchup contain 24 ounces of ketchup on average.

⇒ Mean = 24 ounces.

Standard Deviation = 0.8

Number of bottles used for sample = 49

⇒ n = 49

Confidence level = 95%

Corresponding z value with 95% confidence level = 1.96

Now, confidence interval is given by the following expression :

Mean \pm z^*\times \frac{\sigma}{\sqrt{n}}\\\\=24\pm1.96\times \frac{0.8}{\sqrt{49}}\\\\=24\pm 0.224

Hence, Confidence Interval = (23.776, 24.224)

6 0
2 years ago
What is the area of the triangle? 13 10 12 units​
OLEGan [10]
10 and 12 you never get the number that’s on the slanted side I learned this but I forgot if u add or multiply but the digits that should be used r 10 and 12
7 0
3 years ago
Other questions:
  • What is the probability of 7 out of n is 50%
    6·2 answers
  • The factors of 35, 48, and 60 are listed below. Two of these numbers are relatively prime. Click the two numbers that are
    6·1 answer
  • Bill bought 4 pens for $12. Which of the following equations shows the relationship between the cost of pens, c, and the number
    10·2 answers
  • PLEASE HELP!!!!!!! FIRST CORRECT ANSWER WILL BE THE BRAINLIEST....PLEASE HELP
    6·1 answer
  • Alicia drew a map of Texas. In the scale Alicia used for the map, 1/2 inch represents 20 miles. What is the distance between two
    13·1 answer
  • Help please due now I only have 10 mins..Help please!!! I only have 10 mins!!!​
    5·1 answer
  • Compute the slope of the line below. Enter your answer as a fraction or
    5·1 answer
  • Two angles are complementary. One angle measures 60 degrees. What is the measure of the other angle?
    15·2 answers
  • Aiden works at a lab with a huge circular particle accelerator. It has a diameter of 8 kilometers. What is the accelerator's rad
    5·2 answers
  • Which of the following are vertical asymptotes of the function
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!