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Elísabet conducted an experiment where she examined the number of tourists who visited one place in the north. She counted the number each day for two months last year and wanted to find out if there was a difference in the average number of tourists in those two months. Elizabeth calculated a 95% confidence interval for the difference between the two averages as: -8.21

Elísabet conducted an experiment where she examined the number of tourists who visited one place in the north. She counted the number each day for two months last year and wanted to find out if there was a difference in the average number of tourists in those two months. Elizabeth calculated a 95% confidence interval for the difference between the two averages as: -8.21

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
Section10.3: Measures Of Spread
Problem 1GP
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Elísabet conducted an experiment where she examined the number of tourists who visited one place in the north. She counted the number each day for two months last year and wanted to find out if there was a difference in the average number of tourists in those two months. Elizabeth calculated a 95% confidence interval for the difference between the two averages as: -8.21 <ui - 42 <-2.12. She then performed an appropriate hypothesis test to see if there was a difference in the means and used a = 0.05. Which of the following statements is true? 1. The 1st p-value of the test is lower than 0.05. 2. The 2nd p-value of the test is higher than 0.05. 3. The probability that the null hypothesis is true is 0.05. 4. None of the above statements is correct given the information provided.
Transcribed Image Text:Elísabet conducted an experiment where she examined the number of tourists who visited one place in the north. She counted the number each day for two months last year and wanted to find out if there was a difference in the average number of tourists in those two months. Elizabeth calculated a 95% confidence interval for the difference between the two averages as: -8.21 <ui - 42 <-2.12. She then performed an appropriate hypothesis test to see if there was a difference in the means and used a = 0.05. Which of the following statements is true? 1. The 1st p-value of the test is lower than 0.05. 2. The 2nd p-value of the test is higher than 0.05. 3. The probability that the null hypothesis is true is 0.05. 4. None of the above statements is correct given the information provided.
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