A study is conducted to see if there is evidence that a recorded phone call is more effective than a mailed flyer in getting votes to support a certain candidate. The study assumes a significance level of .

(a) What is the conclusion in the context of this study if the p-value for the test is 0.040?

P value 0.04 < 0.05 (significance level) . So, recorded phone call more effectiveness than mailed flyer to get vote - is considered statistically significant.

Explanation:

To test : Effectiveness of recorded phone call compared to mailed flyer, to  get vote support for candidates

Null Hypothesis : There is no difference between effectiveness of recorded call compared to male flyer, to get vote support for candidates.

Alternate Hypothesis : Recorded phone call is more effective than a mailed flyer in getting votes to support a certain candidate.

P value reflects the probability of obtaining extreme observed results , against null hypothesis. So, A small p value provides evidence favouring alternate hypothesis.

At significance level of 5% i.e 0.05 i.e the generally acceptable level of significance : Since p value 0.04 < 0.05 , null hypothesis is rejected & alternate hypothesis is accepted. This implies 'Recorded phone call is more effective than a mailed flyer in getting votes to support a certain candidate' is considered to be true (statistically significant).

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answer:

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