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A bowling competition had teams competing for the highest number of strikes during a single bowling...

A bowling competition had teams competing for the highest number of strikes during a single bowling game. In reviewing the results of a random sample of teams for this bowling competition, the score keeper found the mean number of strikes  was x¯=19,  with a margin of error of 3.

Construct a confidence interval for the mean number of strikes.

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Answer #1

Solution :

Given that

Point estimate = sample mean = = 19

margin of error = E = 3

A confidence interval for the mean number of strikes,

  ± E

= 19  ± 3

= ( 16, 22 )

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