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The random variable X has a Poisson distribution with mean 40. Give an approximate value of the probability P( 37 less than or equal to X less than 41 ) using the central limit theorem with a continuity correction. Show work.
Two independent samples of sizes n1 = 50 and n2 = 50 are randomly selected from two populations to test the difference between the population means. The sampling distribution of the sample mean difference, is:
the board of a pharmaceutical company has eleven members. one board member will be selected as vice president of
What maximum variance of the raw score population could you have and still be able to reject the null hypothesis of μ = 20 (α = .05), if the sample size is 100 and the sample mean is 22?
Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL. What percent of adult women do you expect to have cholesterol levels at least 200 mg/dL?
We can compare two sample means to determine if the samples were obtained from normal populations with the same mean using the "t" distribution.
A survey of 1,233 visitors to Mumbai last year revealed that 110 visited a small cafe during their visit. Laura claims that 10% of tourists will include a visit to a cafe.
an object is in simple harmonic motion. find an equation for the motion given that the frequency is 4pi and at time t
A study is made by an auto insurance company to determine if there is a relationship between the driver's age and the number of automobile accident claims submitted during a one-year period. From a sample of 300 claims, the following information w..
question during may a certain drawbrige over the intercoastal waterway is raised every half hour to allow boats to
For a multivariate regression there are no residuals One residual for each observation Two residuals for each observation
An accounts receivable auditor is examining accounts for a client. The accounts receivable balance can be considered as a continuous random variable that exhibits normal distribution characteristics.
1.females in a certain class rated their intelligence with a mean of 6.5. the males in the same class rated their
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