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A simple random sample of 90 games from the 2015-2016 NHL season were selected. The mean...

A simple random sample of 90 games from the 2015-2016 NHL season were selected. The mean and standard deviation of goals scored per game for those 90 games were 5.423 and 1.739, respectively. Find a 95% confidence interval for the mean goals scored in NHL hockey games during the 2015-2016 season.

Give the lower limit of the confidence interval you found. Round to three decimal places.

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Answer #1

The statistical software output for this problem is:

Hence,

Lower limit of 95% confidence interval = 5.059

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