The frequency distribution below represents the square footage of a random sample of 250 houses that are owner occupied year round. Approximate the median of the frequency distribution. Square footage Lower Limit Upper Limit Frequency
0-499 0 499 9 500-999 500 999 13 1000-1499 1000 1499 33 1500-1999 1500 1999 115 2000-2499 2000 2499 125 2500-2999 2500 2999 83 3000-3499 3000 3499 45 3500-3999 3500 3999 45 4000-4499 4000 4499 22 4500-4999 4500 4999 10

Which of the following is the graph of y= square root -x-3

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?

Overproduction of uric acid in the body can be an indication of cell breakdown. this may be an advance indication of illness such as gout, leukemia, or lymphoma.† over a period of months, an adult male patient has taken nine blood tests for uric acid. the mean concentration was x = 5.35 mg/dl. the distribution of uric acid in healthy adult males can be assumed to be normal, with σ = 1.87 mg/dl. (a) find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. what is the margin of error? (round your answers to two decimal places.) lower limit upper limit margin of error (b) what conditions are necessary for your calculations? (select all that apply.) σ is unknown n is large σ is known normal distribution of uric acid uniform distribution of uric acid (c) interpret your results in the context of this problem. there is not enough information to make an interpretation. the probability that this interval contains the true average uric acid level for this patient is 0.05. the probability that this interval contains the true average uric acid level for this patient is 0.95. there is a 95% chance that the confidence interval is one of the intervals containing the population average uric acid level for this patient. there is a 5% chance that the confidence interval is one of the intervals containing the population average uric acid level for this patient. (d) find the sample size necessary for a 95% confidence level with maximal margin of error e = 1.10 for the mean concentration of uric acid in this patient's blood. (round your answer up to the nearest whole number.) blood tests