c. The proportion of small and large car buyers from a car manufacturer are respectively P₁ =156/400 and P₂ = 64/200. i. Find the 90% confidence interval for the actual difference between the proportion of small and large car buyers from the car manufacturer. ii. Test the hypothesis that the actual proportion of small car buyers from the car manufacturer is more than 5% greater than the actual proportion of large car buyers from the same manufacturer. Use a 0.01 level of significance.
c. The proportion of small and large car buyers from a car manufacturer are respectively P₁ =156/400 and P₂ = 64/200. i. Find the 90% confidence interval for the actual difference between the proportion of small and large car buyers from the car manufacturer. ii. Test the hypothesis that the actual proportion of small car buyers from the car manufacturer is more than 5% greater than the actual proportion of large car buyers from the same manufacturer. Use a 0.01 level of significance.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![c. The proportion of small and large car buyers from a car manufacturer are respectively
P₁ =156/400 and P₂ = 64/200.
i.
Find the 90% confidence interval for the actual difference between the proportion
of small and large car buyers from the car manufacturer.
ii.
Test the hypothesis that the actual proportion of small car buyers from the car
manufacturer is more than 5% greater than the actual proportion of large car
buyers from the same manufacturer. Use a 0.01 level of significance.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa5ce2195-15a6-410f-abb7-0c76dcbb71c4%2F0a3dd7a9-92c4-4116-ba5b-1a17a4c44d93%2Fya6si1_processed.jpeg&w=3840&q=75)
Transcribed Image Text:c. The proportion of small and large car buyers from a car manufacturer are respectively
P₁ =156/400 and P₂ = 64/200.
i.
Find the 90% confidence interval for the actual difference between the proportion
of small and large car buyers from the car manufacturer.
ii.
Test the hypothesis that the actual proportion of small car buyers from the car
manufacturer is more than 5% greater than the actual proportion of large car
buyers from the same manufacturer. Use a 0.01 level of significance.
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