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1. A city engineering department borrows money at 1.5% per month. What are the corresponding "nominal" and "effective" rates per annum?
2. You have decided to set up a fund for the education of your future child. What is the amount that will be accumulated in this sinking fund at the end of 20 years if you deposit $1000 in the fund at each of the 20 years? Assume interest rate is 10%.
Linear correlation between two variables. Find the critical values of r given the number of pairs of data n and the significance level alpha. n = 11, Alpha = 0.01
Sixty percent of the employees in adepartment are women. One third of the women drive foreign cars. The rest drive domestic cars.
Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.
Workers drive the company vehicle to purchase lunch versus returning to the office to pick up their personal vehicles in order to purchase their lunch?
allen presses the snooze button on his alarm 80 of the time. if he presses snooze he is late for work 40 of the time.
A random sample is obtained from a normal popula- tion with a mean of m 5 95 and a standard deviation of s 5 40. The sample mean is M 5 86. Is this a representative sample mean or an extreme value for a sample of n 5 16 scores?
there are 40 students in an elementary statistics class. on the basis of years of experience the instructor knows that
Home Prices A real estate agency says that the mean home sales price in Spring, Texas, is the same as in Austin, Texas. The mean home sales price for 25 homes in Spring is $127,414. Assume the population standard deviation is $25,875.
Effect of the style (g=Gothic, r=Romanesque) on the total length (y) of English medieval cathedrals, accounting for nave height (x) in cathedral dataset from faraway package. Effect of density, age and weight on the percent body fat (brozek) in fat..
a study is being planned to estimate the mean number of semseter hours taken by students at a college. the population
Suppose a marketing research firm sends questionnaires to 10 different companies. Assuming that each company, independently of the others, returns its completed questionnaire with probability 0.40, what is the probability that 5 or less questionna..
Are the data sufficient to conclude that children with a history of childcare show significantly more behavioral problems than the average kindergarten child? Use a one-tailed test with a = .01.
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