Question
Your body loses sodium when you sweat. Researchers sampled 30random tennis players. The average sodium loss was 500 milligrams per pound and the standard deviation
Your body loses sodium when you sweat. Researchers sampled 30random tennis players. The average sodium loss was 500 milligrams per pound and the standard deviation was 62 milligrams per pound. Construct and interpret a 99% confidence interval to estimate the mean loss in sodium in the population.
(Hint: You will need to use t-distribution)
Your answer:
The 99% confidence interval is (495.57, 504.43). Ninety-nine percent of all the samples of this size will yield a confidence interval of (495.57, 504.43).
The 99% confidence interval is (472.69, 527.31). We are 99% confident that the true population mean of sodium loss for tennis players will be between 472.69 milligrams per pound and 527.31 milligrams per pound.
The 99% confidence interval is (495.57, 504.43). We are 99% confident that the true population mean of sodium loss for tennis players will be between 495.57 milligrams per pound and 504.43 milligrams per pound.
The 99% confidence interval is (472.69, 527.31). Ninety-nine percent of all samples of this size will yield a confidence interval of (472.69, 527.31).
The 99% confidence interval is (468.8, 531.2). We are 99% confident that the true population mean of sodium loss for tennis players will be between 468.8 milligrams per pound and 531.2 milligrams per pound.
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