How much do the volumes of bottles of water vary? A random sample of 50 “20 oz.” water bottles is collected and the contents are measured. A 90% confidence interval for the population means is 19.10 to 20.74. A. Interpret the confidence interval in context
B. Interpret the confidence level in context.
C. Based on this interval, what can you say about the contents of the bottles in the sample? What can you say about the contents of bottles in the population?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

What is the measure of one interior angle of a pentagon

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle?