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sholds were selected and asked if they had purchased tuna in the last month An ad campaign was then run promoting the healthy benefits of tuna A second simple random sample of 57 households were selected and asked if they had purchased tuna in the last month. The results from each sample are listed below. Construct the 95% confdence estimate of the difference in the proportion of households who purchased tuna before and after the ad campaign The number of households purchasing tuna before and after an add campaign (42/33, 57/45) Sample Size 42 57 Number of Households that Purchased Tuna Before Add Campaign 33 45 After Add Campaign "Let the first population be the "after" results and the second population be the before results" The right hand critical value is Round to 2 decimal places The error is Round to 4 decimal places The mean difference proportion of households purchasing tuna after and before the ad campaign is between Round to 3 decimal places and Question 6 Does the ad campaign appear to have increased sales? Explain using statistics. Make sure to include the conidence level in your answer. Lo View Insert Format Toos Table

sholds were selected and asked if they had purchased tuna in the last month An ad campaign was then run promoting the healthy benefits of tuna A second simple random sample of 57 households were selected and asked if they had purchased tuna in the last month. The results from each sample are listed below. Construct the 95% confdence estimate of the difference in the proportion of households who purchased tuna before and after the ad campaign The number of households purchasing tuna before and after an add campaign (42/33, 57/45) Sample Size 42 57 Number of Households that Purchased Tuna Before Add Campaign 33 45 After Add Campaign "Let the first population be the "after" results and the second population be the before results" The right hand critical value is Round to 2 decimal places The error is Round to 4 decimal places The mean difference proportion of households purchasing tuna after and before the ad campaign is between Round to 3 decimal places and Question 6 Does the ad campaign appear to have increased sales? Explain using statistics. Make sure to include the conidence level in your answer. Lo View Insert Format Toos Table

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
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A simple random sample of 42 households were selected and asked if they had purchased tuna in the last month. An ad campaign was then run promoting the healthy benefits of tuna. A second simple random sample of 57 households were selected and asked if they had purchased tuna in the last month. The results from each sample are listed below. Construct the 95% confidence estimate of the difference in the proportion of households who purchased tuna before and after the ad campaign. The number of households purchasing tuna before and after an add campaign (42/33, 57/45) Sample Size Number Households that Purchased Tuna Before Add Campaign 42 33 After Add Campaign 57 45 "Let the first population be the "after" results and the second population be the "before" results. The right hand critical value is Round to 2 decimal places. The error is Round to 4 decimal places. The mean difference proportion of households purchasing tuna after and before the ad campaign is between and Round to 3 decimal places Question 6 Does the ad campaign appear to have increased sales? Explain using statistics. Make sure to include the confhdence level in your answer. Edn View insert Format lools Table 12pt Paragraph B ■ 三
Transcribed Image Text:A simple random sample of 42 households were selected and asked if they had purchased tuna in the last month. An ad campaign was then run promoting the healthy benefits of tuna. A second simple random sample of 57 households were selected and asked if they had purchased tuna in the last month. The results from each sample are listed below. Construct the 95% confidence estimate of the difference in the proportion of households who purchased tuna before and after the ad campaign. The number of households purchasing tuna before and after an add campaign (42/33, 57/45) Sample Size Number Households that Purchased Tuna Before Add Campaign 42 33 After Add Campaign 57 45 "Let the first population be the "after" results and the second population be the "before" results. The right hand critical value is Round to 2 decimal places. The error is Round to 4 decimal places. The mean difference proportion of households purchasing tuna after and before the ad campaign is between and Round to 3 decimal places Question 6 Does the ad campaign appear to have increased sales? Explain using statistics. Make sure to include the confhdence level in your answer. Edn View insert Format lools Table 12pt Paragraph B ■ 三
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