A telephone sales solicitor, trying to decide between two alternative sales pitches, randomly alternated between them...

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A telephone sales solicitor, trying to decide between twoalternative sales pitches, randomly alternated between them duringa day of calls. Using approach A, 20% of 100 calls led to requestsfor the mailing of additional product information. For approach Bin another 100 calls, only 14 % led to requests for the productinformation mailing.
At the 0.05 significance level, can we conclude that thedifference in results was due to chance?
Construct the 95% confidence level for the difference betweenpopulation proportions (Ï€1 - Ï€2).
Identify and interpret the p-value for the test.
n₁ 100 n₂ 100
p ₁ 20% p ₂ 14%

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3.9 Ratings (468 Votes)

The hypotheses areH0 H1 Sample proportions arep1 02 and p2 014Pooled sample proportion p n1 p1 n2 p2 n1 n2 100 02 100 014 100 100 017Standard error See Answer

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