Using the same highway mileage dataset as in questions 18-21, we are interested in a regression model to predict hwy mpg from type of drive. to prepare for this, we first do the 1-way anova shown above. assume that the conditions for a valid 1-way anova are satisfied. one-way anova: hwy mpg versus driveanalysis of variancesource df adj ss adj ms f-value p-valuedrive 2 4542 2270.79 127.59 0.000error 306 5446 17.80total 308 9988tukey pairwise comparisonsgrouping information using the tukey method and 95% confidencedrive n mean groupingf 167 33.353 aa 61 25.787 br 81 25.568 bmeans that do not share a letter are significantly different. from just the p-value of this anova we can conclude that, at any typical α level:

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