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A new treatment for baldness is known to be effective in 70% of the cases treated.
Four bald members of the same family are treated; let X be the number of successfully treated members of the family. Is X a binomial random variable? Explain.
What is your null hypothesis? What is your alternative hypothesis? What is the value of the SST
use the weights of cans of generic soda as sample one and use the weights of cans of the diet version of that soda as
Compare equations with one variable to equations with two variables. How are they alike? How are they different? What if an equation had three variables?
A random sample of 61 accounts were checked. The standard deviation was $286.20. At α= 0.01, test the firms' assumption. Assume the account balances are normally distributed.
how much should a healthy kitten weigh? a healthy 10-week-old domestic kitten should weigh an average of mean 24.5
a building has ten floors plus a basement if 12 people get into an elevator at the basement and each chooses a floor at
a fair six sided die is rolled 10 times. calculate the expected value of the sum of the numbers observed. then compute
Let X1,..., Xn be a random sample of size n from the geometric distribution for which p is the probability of success. (a) Use the method of moments to ?nd a point estimator for p.
Computing the mean and standard errors of sampling distribution - Using the central limit theorem, find the means and standard errors of sampling distributions
In an area having sandy soil, 50 small trees of a certain type were planted, and another 50 trees were planted in an area having clay soil. Let X = the number of trees planted in sandy soil that survive 1 year and Y = the number of tree..
suppose the joint pdf of lifetimes of a certain part and a spare is given byfx y e?xy 0 lt x lt ? 0 lt y lt ?and zero
a final exam in math 160 has a mean of 73 with a standard deviation of 7.8. 40 students are randomly selected and
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