Answer
r = 2
Step-by-step explanation:
The question is simple and the explanation but I will give you
The conclusion regarding the publisher's claim regarding the hypothesis is that have sufficient evidence to support the claim that the proportion is less than 30% of their readers own a Rolls Royce.
<h3>What is a null hypothesis?</h3>
The null hypothesis is a statistical theory that suggests that no statistical relationship and significance exists in a set of given single observed variable, between two sets of observed data and measured phenomena.
Since we reject the null hypothesis , we have sufficient evidence to support the claim. In this case, we have sufficient evidence to support the claim that the proportion is less than 30% of their readers own a Rolls Royce.
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Complete question:
A newsletter publisher believes that less than 30% of their readers own a Rolls Royce. For marketing purposes, a potential advertiser wants to confirm this claim. After performing a test at the 0.02 level of significance, the advertiser decides to reject the null hypothesis. What is the conclusion regarding the publisher's claim?
Answer:
Negative, because negative plus positive = negative
Step-by-step explanation:
1: Subtract 15 from both sides. 5x=13.
2: Divide both sides by 5.
Answer: 2.6, which is equal to 13/5. The answer is B.