The question is: the town of Dudley municipal bonds are yielding at 4%. Assume your federal tax rate is 22% and your state tax rate is 3%. What % (two decimal places) would you need to earn in a fully...
The question is: the town of Dudley municipal bonds are yielding at 4%. Assume your federal tax rate is 22% and your state tax rate is 3%. What % (two decimal places) would you need to earn in a fully...
The average composite ACT score for Ohio students who took the test in 2003 was 21.4. Assume that the standard deviation is 1.05. In a random sample of 25 students who took the exam in 2003, what...
A company’s manufacturing process uses 500 gallons of water at a time, a scrubbing machine then removes most of the chemical pollutant before pumping the water into a lake. Legally the treated water...
Construct a population data set for which N=6, populationman=5, and σ=2.
A contractor is considering a sale that promises a profit of $34,000 with a probability of .7 or a loss (due to bad weather and such) of $5,000 with a probability of .3. What is the expected profit...
A study was conducted to evaluate the effect of calcium supplement on preventing postmenopausal osteoporosis. Among 300 women aged 60 and above who took calcium supplements regularly, 15% had postmenopausal...
A test was made of H0:1 = 2 versus H1:1 < 2. The sample means were x1 =13 and x2 =12, the sample standard deviations were s1 = 4 and s2 = 3, and the sample sizes were n1 = 16 and n2 = 15. How many...
In the study 500 babies were born, and 275 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result,...
When σ is unknown and the sample is of size n ≥ 30, there are two methods for computing confidence intervals for μ. Method 1: Use the Student's t distribution with d.f. = n − 1. This is the...
Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy...
It is estimated that 3.2% of the general population will live past their 90th birthday. In a graduating class of 737 high school seniors, find the following probabilities. (Round your answers to four...
The prediction interval around y for a specific x is A) a confidence interval for the true mean value of the y values that correspond to that x. B) the difference between the value of y and the value...
For a prediction value of y from a specific value x, which of the following contribute to the prediction error? A) The standard error of the estimate C) The error in estimating the intercept B) The...
The Centers for Disease Control and Prevention reported a survey of randomly selected Americans age 65 and older, which found that 535 of 1068 women and 421 of 1012...
The Centers for Disease Control and Prevention reported a survey of randomly selected Americans age 65 and older, which found that 535 of 1068 women and 421 of 1012...
I have no idea evn how to start this question The average Demand for renatl skis on winter Saturdays at a particular area is 150 pairs which has been quites stable over time. There is variation...
An accounting firm has noticed that of the companies it audits, 85% show no inventory shortages, 10% show small inventory shortages and 5% show large inventory shortages. The firm has devised a new...
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 38 farming regions gave a sample mean of x = $6.88 per 100 pounds of watermelon. Assume that σ is...
On an easy test, the mean score was 98 out of a possible 100 points. The distribution of the test scores is likely to be
It is estimated that 3.2% of the general population will live past their 90th birthday. In a graduating class of 737 high school seniors, find the following probabilities. (Round your answers to four...