Find the value of sample mean resonance frequency

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Reference no: EM13124119

The two intervals (114.4, 115.6) and (114.1, 115.9) are confidence intervals for μ = true average resonance frequency (in hertz) for all tennis rackets of a certain type.

A. What is the value of the sample mean resonance frequency?

B. The confidence level for one of these intervals is 90% and for the other it is 99%. Which is which, and how can you tell?

Reference no: EM13124119

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