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A sample of 8 children in the 5th grade of North Stratfield School run the 100...

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Statistics

A sample of 8 children in the 5th grade of North StratfieldSchool run the 100 meter dash in a average time of 20.2 seconds.Assume the bias adjusted sample standard deviation of theindividual 100 meter dash times is 7.1 seconds.
Construct a 99% confidence interval for μ, the true population mean100 meter dash time. Since n is small, the t statistic will be usedin deriving this confidence interval.
What is the degrees of freedom parameter that should be used toderive the t-value?

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