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Cars coming along Magnolia Street come to a fork in the road and have to choose either Willow Street or Main Street to continue. Assume that the number of cars that arrive at the fork in unit time has a Poisson distribution with parameter λ = 4. A car arriving at the fork chooses Main Street with probability 3/4 and Willow Street with probability 1/4. Let X be the random variable which counts the number of cars that, in a given unit of time, pass by Joe's Barber Shop on Main Street. What is the distribution of X?
Forecast sales for the next day using a three-day weighted moving average where the weights are 3, 1, and 1 (the highest weight is for the most recent number).
Can you think of an example where the analysis of variance (ANOVA) can be used? How is ANOVA being used in the workplace, or how should it be used?
using 10 pairs of sample data if you compute the value of the linear correlation coefficient r and obtain a result of
customers arrive to a thrift bank branch according to a poisson distribution at a mean rate 50 customers per hour. the
A survey covering 0 different suburbs in Dallas found the average price of gasoline to be $3.924 per gallon with a population standard deviation of $0.053. What critical value shoiuld be used to test the claim using a = 0.01?
In a bumper test, three types of autos were deliberately crashed into a barrier at 5mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Are mean crash damages the sa..
a flag is to consist of 6 vertical stripes in yellow green blue orange brown and red. it is not necessary to use all of
the sample mean and sample variance of five data values are respectively macrx 104 and s2 4. if three of the data
Finding Feasible Statistical Study Methods
find the indicated probabilities using the geometric distribution or poison distrubution. then determine if the events
In Week 4, you explored ttests, which allowed you to compare a sample to a population or compare twogroups to one another. You analyzed a study about how visualization techniquesimpact how long it takes people with insomnia to fall asleep. But wha..
Briefly state the evaluation criteria for using a computed regression equation; specifically, comment on the coefficient of determination, correlation coefficient, and standard error of the estimate.
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