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What sample size is needed to estimate the proportion of Americans who favor tougher gun control with 95% confidence and maximum error of 3%. Assume past studies indicted that the proportion is around 40%.
In a random sample of 10 adults from a nearby county, the mean waste generated per person per day was 4.35 pounds and the standard deviation was 1.88 pounds.
Customers arrive at an automated coffee vending machine at a rate of 4 per minute, following a Poisson distribution. What is the average number of people waiting in line?
In past elections, the representative received 40 percent of the popular vote in that area of the state. She doubts whether it has changed much. How many registered voters should be sampled?
Rose's garden is a square with sides of length x feet. Next spring she plans to make it rectangular by lengthening one side 5 feet and shortening the other side by 5 feet. What polynomial represents the new area?
In the prime factorization of an integer, what is the maximum number of prime factors greater than the square root of that integer? If there is a prime factor greater than the square root of that integer
According to the Chebyshev rule, at least what percentage of the observation in any data set are contained within a distance of 3 standard deviations around the mean.
Solve different inventory control problems using an appropriate OR method.
illustrate briefly how an experimental study is conducted. What is the difference between the two types of variables used.
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
Process of algebraic division and then solving a quadratic equation, find the complex roots. Write down all the factors of the 4th degree polynomial
Why is it important that a sample be random and representative when conducting hypothesis testing?
A manufacturer produces a batch of memory chips (RAM) and measures the mean-time-between-failures (MTBF). The manufacturer then changes a manufacturing process and produces another batch and again measures the MTBF.
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