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You are designing a poster with area 1225 cm2 to contain a printing area having margins of 5cm at the top and bottom and 8cm on the sides. Find the largest possible printing area. Round your answer to the nearest four decimal place.
among the 15 scientists working on a research project 10 have ph.d.s. if four of these scientists are chosen at random
1. of 25 members of a senior honors engineering society 18 are men and 7 are women. the advisor chooses 4 of them to be
Construct a 90% confidence interval for the standard deviation of the number of hours this firm's employees spend on work-related activities in a typical week.
A study of 200 commercial firms revealed the data below. What is the probability that a particular firm will have $1 million or more in income after taxes?
Find the critical value, t0, to test the claim that the mean1>mean 2. Two samples are randomly selected and come from populations that are normal. The sample statistics are given below. Assume that standard deviation 2/1 is not equal standard devi..
At the .05 significance level, is the number of units produced on the afternoon shift larger?
1. find the probability distribution for x the sum of a fair four sided die and and fair sixsided die. b for x from
A process has a capability index of 0.40. This index is interpreted to mean that the process is:
A 10 year study by the American Heart Association provided data on how age, blood pressure and smoking relate to the risk of strokes.
suppose we know grades on final exam in a statistic course are normally distributed with a mean of 72 and standard
In Meijer supermarket, the customer's waiting time to check out is approximately normally distributed with a standard deviation of 2.5 minutes.
a company that produces dvd drives has a 9 defective rate. let x represent the number of defectives in a random sample
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