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erik [133]
3 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]3 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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