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The weights of men are normally distributed with mean of 173 lb and a SD of 30 lb. Suppose we choose a random sample of 32 men. Find the probability that the mean of that sample will exceed 181.25 lb.
researchers found a correlation coefficient of r .50 on personality measures for identical twins. a reporter
If two events are collectively exhaustive, what is the probability that both occur at the same time?
What has to be the case for us to discuss one variable "causing" another - In correlation and regression we are examining relationships between two or more variables
Ms Lisa is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample info:
Find a 95% confidence interval for the mean daily caloric intake. Interpret this interval.
Which of the following statements is true regarding the leverage of supply chain savings? Supply chain leverage is about the same for all industries.
how would you explain the analysis of variance assuming that your audience has not had a statistics class
The first and third quartiles were 17.95 and 35.45 miles per gallon, respectively, Develop a box plot and comment on the distribution. Is it a Symmetric distribution?
C-Spec has determined that the machine has a sample mean of 4.001 inches with a standard deviation of .002 inch. Calculate the (capability index) for this machine.
let x be binomial with parameters n15 and p.2a find the expression for density for xb find the expression for the
a bank with branches in a large metropolitan area is considering opening its offices on saturday but it is uncertain
Assume that company A makes 80% of all electrocardiograph machines, company B make 15% of them, and the company C makes the other 5%.
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