Mathematics, 06.03.2021 04:00 rbeltran24
Rex wanted to estimate the mean finishing time for the approximately 50 , 000 50,00050, comma, 000 finishers at the New York City Marathon. He took a random sample of 10 1010 finishers' times, which were skewed to the right with a sample mean of x ˉ = 271.5 x ˉ =271.5x, with, \bar, on top, equals, 271, point, 5 minutes. He's considering using his data to make a confidence interval for the mean finishing time. Which conditions for constructing a t tt interval have been met? Choose all answers that apply: Choose all answers that apply: (Choice A) A The data is a random sample from the population of interest. (Choice B) B The sampling distribution of x ˉ x ˉ x, with, \bar, on top is approximately normal. (Choice C) C Individual observations can be considered independent.
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Rex wanted to estimate the mean finishing time for the approximately 50 , 000 50,00050, comma, 000 f...
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