Mathematics, 01.04.2021 02:20, justkevin1231
The half-life of a radioactive kind of sodium is 15 hours. How much will be left after 45 hours, if you start with 80 grams of it?
Answers: 2
Mathematics, 22.06.2019 02:10, Tcareyoliver
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
Answers: 2
Mathematics, 22.06.2019 04:00, sajawalkhan148
Akayaker travels 3 miles upstream and 3 miles downstream in a total of 4 hours. in still water, the kayaker travels at a speed of 2 mph. what is the average speed of the river's current?
Answers: 2
Mathematics, 22.06.2019 07:00, keva1p6dk26
Multiply these polynomials and simplify. enter your response in standard form (-6y + 8y4 – 5)(y2 – 11y)
Answers: 1
The half-life of a radioactive kind of sodium is 15 hours. How much will be left after 45 hours, if...
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