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t is well known among hockey fans that the National Hockey League (NHL) has been trying to increase goal scoring. The following table gives a set of summary statistics from the 2010 - 2011 and 2018 - 2019 NHL seasons. Assuming that the data from each season are independent simple random samples, complete the following exercises: At the 5% significance level do the data provide sufficient evidence that the average number of goals scored in the 2018 - 2019 season is greater than the average number of goals scored in the 2010 - 2011 season? Compute a 95% confidence interval for the difference between the average number of goals scored in the 2010 - 2011 season and the 2018 - 2019 season. Do the results of the hypothesis test and confidence interval agree? Explain.

t is well known among hockey fans that the National Hockey League (NHL) has been trying to increase goal scoring. The following table gives a set of summary statistics from the 2010 - 2011 and 2018 - 2019 NHL seasons. Assuming that the data from each season are independent simple random samples, complete the following exercises: At the 5% significance level do the data provide sufficient evidence that the average number of goals scored in the 2018 - 2019 season is greater than the average number of goals scored in the 2010 - 2011 season? Compute a 95% confidence interval for the difference between the average number of goals scored in the 2010 - 2011 season and the 2018 - 2019 season. Do the results of the hypothesis test and confidence interval agree? Explain.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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It is well known among hockey fans that the National Hockey League (NHL) has been trying to increase goal scoring. The following table gives a set of summary statistics from the 2010 - 2011 and 2018 - 2019 NHL seasons.

Assuming that the data from each season are independent simple random samples, complete the following exercises:

  1. At the 5% significance level do the data provide sufficient evidence that the average number of goals scored in the 2018 - 2019 season is greater than the average number of goals scored in the 2010 - 2011 season?
  2. Compute a 95% confidence interval for the difference between the average number of goals scored in the 2010 - 2011 season and the 2018 - 2019 season.
  3. Do the results of the hypothesis test and confidence interval agree? Explain.
It is well known among hockey fans that the National Hockey League (NHL) has been trying to increase goal scoring. The following table gives a set of summary statistics from the 2010 - 2011 and 2018 - 2019 NHL seasons. Season Mean Standard Deviation Number of Teams 2010 - 2011 224.0323 21.154 31 2018 - 2019 244.4063 29.277 32 Assuming that the data from each season are independent simple random samples, complete the following exercises: a. At the 5% significance level do the data provide sufficient evidence that the average number of goals scored in the 2018 - 2019 season is greater than the average number of goals scored in the 2010 - 2011 season? b. Compute a 95% confidence interval for the difference between the average number of goals scored in the 2010 - 2011 season and the 2018 - 2019 season. c. Do the results of the hypothesis test and confidence interval agree? Explain.
Transcribed Image Text:It is well known among hockey fans that the National Hockey League (NHL) has been trying to increase goal scoring. The following table gives a set of summary statistics from the 2010 - 2011 and 2018 - 2019 NHL seasons. Season Mean Standard Deviation Number of Teams 2010 - 2011 224.0323 21.154 31 2018 - 2019 244.4063 29.277 32 Assuming that the data from each season are independent simple random samples, complete the following exercises: a. At the 5% significance level do the data provide sufficient evidence that the average number of goals scored in the 2018 - 2019 season is greater than the average number of goals scored in the 2010 - 2011 season? b. Compute a 95% confidence interval for the difference between the average number of goals scored in the 2010 - 2011 season and the 2018 - 2019 season. c. Do the results of the hypothesis test and confidence interval agree? Explain.
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