3. Overproduction of uric acid in the body can be an indication of cell breakdown. Over a period ofclam 2 months, an adult male patient has taken eight blood tests for uric acid. The mean concentrationwas x = 5.35 mg/dl. The distribution of uric acid in healthy adult males can be assumed to besono normal, with σ = 1.86mg/dl. Find a 95% confidence interval for the population meanconcentration of uric acid in this patient's blood. What is the margin of error?

Given information :Mean(xˉ)=5.35 mg/dlσ=1.86 mg/dln=8c=95%=0.95Step 2:The margin of error calculated…

Answered: 3. Overproduction of uric acid in the…

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.3: Special Probability Density Functions

Problem 7E

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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, anadult male patient has taken eight blood tests for uric acid. The mean concentration was ?̅= 5.35mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, withσ = 1.85 mg/dl.a. Find a 90% confidence interval for the population mean concentration of uric acid in thispatient’s blood. What is the margin of error?b. Find a 99% confidence interval for the population mean concentration of uric acid in thispatient’s blood. What is the margin of error?c. Compare the margins of error for parts (a) and (b). As confidence levels increase, do marginsof error increase?
Unfortunately, arsenic occurs naturally in some ground water. A mean arsenic level of m= 8.0 parts per billion (ppb) is considered safe for agricultural use. A well in Texas is used to water cotton crops. This well is tested on a regular basis for arsenic. A random sample of 37 tests gave a sample mean of xbar= 7.2 ppb arsenic, with s= 1.9 ppb. Does this info indicate that the mean level of arsenic in this well is less than 8ppb? Use a= 0.01. Show full detail.
Avalanches can be a real problem for travelers in the western United States and Canada. Slab avalanches studied in Canada had an average thickness of µ = 67 cm. A sample of 31 avalanches in the U.S. gave a sample mean of = 63.0 cm. It is known that o = 10.3 cm for this type of data. Use a 0.03 level of significance to test the claim that the mean slab thickness of avalanches in the United States is different from that in Canada. Use the P-Value Approach. What is the Decision for this problem? O There is not sufficient evidence at the 0.03 level of significance to show that the mean slab thickness of avalanches in the United States is different from that in Canada. There is sufficient evidence at the 0.03 level of significance to show that the mean slab thickness of avalanches in the United States is less than that in Canada. There is sufficient evidence at the 0.03 level of significance to show that the mean slab thickness of avalanches in the United States is different from that in…
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, anadult male patient has taken eight blood tests for uric acid. The mean concentration was ?̅= 5.35mg/dl. The distribution of uric acid in healthy adult males can be assumed to be normal, with σ = 1.85 mg/dl.a. Find a 90% confidence interval for the population mean concentration of uric acid in this patient’s blood. What is the margin of error?b. Find a 99% confidence interval for the population mean concentration of uric acid in this patient’s blood. What is the margin of error? Compare the lengths of the confidence intervals for parts (a) and (b). As the confidence levelsincrease, do the confidence intervals increase in length?

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