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A: z-value corresponding to 90% CI is 1.645 z-value corresponding to 95% CI is 1.96
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A: Given: The number of limbs on a 2-year-old oak tree is 21.
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Q: a) The cutoff time for the fastest 5% of athletes in the men's group, i.e. those who took the…
A: Males u = 4313 sigma = 583 Female u = 5261 sigma = 807
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