A Group of 40 Bowlers Showed That Their Average Score

question 77

Multiple Choice

A group of 40 bowlers showed that their average score was 192. Assume the population standard deviation is 8. Find the 95% confidence interval of the mean score of all bowlers.

• A)(189.5, 194.5)
• B)(186.5, 197.5)
• C)(188.5, 195.6)
• D)(187.3, 196.1)

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