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For parts A and B solve using the binomial distribution and the normal approximation to the binomial distribution. Be sure to apply continuity correction when using the normal approximation to the bin
In the psychology department, there are 5 golden retrivers, 2 german shepaherds, and one pug dog. which measure of central tendency can be used?
In the previous exercise, suppose that the mean of the filling operation can be adjusted easily, but the standard deviation remains at 0.1 ounce. (Beverage companies can be heavily penalized for sel
Be sure to apply continuity correction when using the normal approximation to the binomial distribution.
Consider a sample of 30 WMU engineering alumni. The population average salary is $55,000 and amongst the 30 alumni the sample standard deviation is $12,000. Assuming the population is normally dist
The offices of president, vice president, secretary, and treasurer for an environmental club will be filled from a pool of 12 candidates. Five of the candidates are members of the debate team.
Web crawlers need to estimate the frequency of changes to Web sites to maintain a current index for Web searches. Assume that the changes to a Web site follow a Poisson process with a mean of 3.5 da
Suppose the probability of a bike getting stolen in Honolulu is 10% and 22 bikes are randomly selected in Honolulu. What is the probability that 3 of them will be stolen?
Birth weights at a local hospital have a normal distribution with a mean of 110 oz and a standard deviation of 15 oz. What is the probability that a baby born at this hospital will have a weight great
An English instructor gave a final exam and found a mean score of 73 points and a standard deviation of 5.8 points. assume that a normal model can be applied.
Let X be the number of teams from SD on Pete's season schedule. What's the probability that none of the Pete's opponents are from SD? What distribution and parameter(s) are you using?
Let A be the number of rounds until Lionel wins his first stuffed animal. What is the distribution and parameters of A? Also, find the expected value and variance of A.
If the temperature at which a certain compound melts is a random variable with mean value 120 degree Celsius and standard deviation 2 degree Celsius, what are the mean temperature and standard devia
The financial department at a large hospital would like to estimate the average outstanding balance owed by patients who have not paid their bills in full.
What value of the process mean would you recommend? Estimate the proportion of scrap and rework produced by the process at this new mean.
Ten measurements of flow through a pipe are taken over time using a flow meter with a digital output. The flow meter has an accuracy of plus/minus 0.06 cubic feet per minute (CFM).
What is the probability that 5% of the people there are female? B. What is the probability that less than 90% of the people there are male? C. What is the expected number of females currently there?
A load cell is used to take repeated measurements of the force produced by a hydraulic cylinder. The load cell has an operating range of 0 to 310 Newtons, and an accuracy of 0.16% of full scale span
In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was determined that 20% of all stock investors are retired people. In addition, 40% of all adults invest in mutual fun
Consider a sample of 30 WMU engineering alumni. The population average salary is $55,000 and amongst the 30 alumni the sample standard deviation is $12,000. Assuming the population is normally distr
In the particular cubic parsec selected around a little green planet, one finds exactly 23 stars. What is the probability that out of these 23 stars, there are exactly 4 starts in the cube with side
The mean score for this population of children was 106 points, with a standard deviation of 16.4 points. Consider a random sample of 36 children from this population, and let x represent the mean re
Find the probability distribution for x = the sum of a fair, four sided die and and fair, sixsided die. b) for x from problem 1, find the probability of having the sum be at least four. c) for x fro
A recent study focused on the amount of money single men and women saved monthly. The information is summarized below. Assume that the population standard deviations are equal.
You wish to deposit $500 per month into an account for 36 months. Assume your interest rate is equal to the prime interest rate. prime interest rate = 3.25