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erik [133]
2 years ago
13

A 95 percent confidence interval for the proportion difference p1−p2 was calculated to be (−0. 12,0. 17). Which of the following

conclusions is supported by the interval?
SAT
1 answer:
Alla [95]2 years ago
8 0

The only conclusion that is supported by the interval is; C. There is evidence to conclude that p1>p2 because all values in the interval are positive.

<h3>What is the confidence Interval?</h3>

We are given a confidence interval for the difference in proportions. The null hypothesis means that there's no difference. Thus;

H0 = p1 - p2 = 0

However, If the difference is positive, it means that we have sufficient evidence as p1 > p2 but If it's negative, then we have sufficient evidence as p2 > p1.

Option A: This is incorrect because of interpretation of the interval.

Option B & D: They are not correct because they are incomplete

Option E: This is not correct because it did not properly get the definition of alpha-level and p-value with confidence interval values.

Thus, only option C is correct.

The missing options are;

A. There is evidence to conclude that p1>p2 because 0.325 is greater than 0.247.

B. There is evidence to conclude that p1

C. There is evidence to conclude that p1>p2 because all values in the interval are positive.

D. There is evidence to conclude that p1

E. There is evidence to conclude that p2>p1 because 0.247 and 0.325 are both greater than 0.05.

Read more about confidence intervals at; brainly.com/question/16148560

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mina [271]

The question isn’t clear but i would say yes.

Hope this helps.

4 0
3 years ago
Read 2 more answers
Who developed the first professional police force supported by the government in england?
sdas [7]

Sir Robert Peel developed the first professional police force supported by the government in england.

As the ,"Father of Modern Policing" he established a set of policing standards that are still relevant and urgent now as they were when they were first formed.

The Metropolitan Police Act, which established the Metropolitan Police Force and permanently appointed and paid Constables to guard the capital, was passed in 1829 while Sir Robert served as Home Secretary in Lord Liverpool's Tory Cabinet.

All police officers in Britain are now referred to as "Bobbies"! However, they were originally referred to as "Peelers" in honor of a certain Sir Robert Peel.

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8 0
1 year ago
How long are Chinese school days?
anastassius [24]

Answer:

7:30am to 5:00pm

Explanation:

In china the days are a bit longer causing school days to be longer as well

6 0
3 years ago
Read 2 more answers
What the quarities of good supplier in the market should have?​
storchak [24]

Answer:

1. Remains compliant with industry standards. Ultimately, buyers need to know that suppliers aren't going to add extra risk to their organisations' risk profiles.

2. Keeps information up-to-date.

3. Strives to continually improve.

4. Demonstrates innovation.

5. Has a proactive attitude.

Explanation:

3 0
2 years ago
(5372 + 100y^2) + 5(10y^2 – 110) Add the two polynomials and write in the form ay^2 + b, where a and b are constants, What is th
dangina [55]

Answer:

The value of a is 150 and b is 4822.

Explanation:

First, you have to expand to remove brackets :

(5372 + 100 {y}^{2} ) + 5(10 {y}^{2}  - 110)

= 5372 + 100 {y}^{2}  + 50 {y}^{2}  - 550

Next, you have to simplify :

100 {y}^{2}  + 50 {y}^{2}  + 5372 - 550

= 150 {y}^{2}  + 4822

Next, you have to compare it :

a {y}^{2}  + b = 150 {y}^{2}  + 4822

a = 150

b = 4822

5 0
3 years ago
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