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3. We are interested in comparing the average supermarket prices of two leading colas. Our sample was taken by randomly selecting eight supermarkets and recording the price of a six-pack of each brand of cola at each supermarket. The data are shown in the following table: Supermarket Brand 1 Brand 2 1 $2.25 $2.30 23 $2.47 $2.45 $2.38 $2.44 4 $2.27 $2.29 5 $2.15 $2.25 $2.25 $2.25 7 $2.36 $2.42 8 $2.37 $2.40 Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2.

3. We are interested in comparing the average supermarket prices of two leading colas. Our sample was taken by randomly selecting eight supermarkets and recording the price of a six-pack of each brand of cola at each supermarket. The data are shown in the following table: Supermarket Brand 1 Brand 2 1 $2.25 $2.30 23 $2.47 $2.45 $2.38 $2.44 4 $2.27 $2.29 5 $2.15 $2.25 $2.25 $2.25 7 $2.36 $2.42 8 $2.37 $2.40 Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2. SHow all work used in detail. and refer to the picture

3. We are interested in comparing the average supermarket prices of two leading colas. Our sample was taken by randomly selecting eight supermarkets and recording the price of a six-pack of each brand of cola at each supermarket. The data are shown in the following table: Supermarket Brand 1 Brand 2 1 $2.25 $2.30 23 $2.47 $2.45 $2.38 $2.44 4 $2.27 $2.29 5 $2.15 $2.25 $2.25 $2.25 7 $2.36 $2.42 8 $2.37 $2.40 Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2.
Transcribed Image Text:3. We are interested in comparing the average supermarket prices of two leading colas. Our sample was taken by randomly selecting eight supermarkets and recording the price of a six-pack of each brand of cola at each supermarket. The data are shown in the following table: Supermarket Brand 1 Brand 2 1 $2.25 $2.30 23 $2.47 $2.45 $2.38 $2.44 4 $2.27 $2.29 5 $2.15 $2.25 $2.25 $2.25 7 $2.36 $2.42 8 $2.37 $2.40 Find a 94% confidence interval for the difference in mean price of brand 1 and brand 2.
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