Answer both please Unit Activity: Mathematical models and Consumer Finance
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Part A
Tiffany figures she can pay $1,000 a month for housing. She uses a mortgage calculator to gure out how big a mortgage she could afford. Tiffany
sees that current interest rates, a $150,000 mortgage would be a payment of $800, and her estimated tax payment each month would be $100.
Tiffany thinks she can easily afford the $900 total monthly payment. Describe three costs she did not consider in her calculation.
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Part B
Frankle and Jenny want to buy a home in a particular neighborhood, but they have not found the perfect house yet. One problem they have is that
they do not know how much they can afford to pay, What guidelines could give them an idea? What help could a mortgage company give them?
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E

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