Apilot can travel 600 miles with the wind in the same amount of time as 400 miles against the wind. find the speed of the wind if the pilot's speed in still air is 250 miles per hour.

The longer leg of a 30-60-90 trangle is 18

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Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.