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The weight of a .5 cubic yard bag of landscape mulch in uniformly distributed over the interval from 38.5 to 41.5 pounds.
a. Give a mathematical expression for the probability density function.b. What is the probability that a bag will weigh more than 40 pounds?c. What is the probability that a bag will weigh less than 39 pounds?d. What is the probability that a bag will weigh between 39 and 40 pounds?
What is the probability that of today's 1,100 callers at least 5 received a busy signal? Use the poisson approximation to the binomial.
A decision maker is working on a problem that requires her to study the uncertainty surrounding the payoff of an investment. There are three possible levels of payoff -$1,000, $5,000, and $10,000.
A process is out of control when:
Don't quite understand the concept of computing confidence intervals. How would confidence intervals determine sampling design and data collection for information gathered.
Determine percentage of employees has 5 dependents? Of all employees which have at least one dependent, determine percentage has more than one?
What is the p value? Describe the steps in formal hypothesis testing. Make at least one comment for each step.
Such things as historical documents, newspaper reports, TV and radio broadcasts, when used in research, represents
A production process manufacturers alternators. On the average, 1% of the alternators will not perform properly when tested in the plant. When a large shipment of alternators is received at the plant
How many commercials' worth of data do I need to have a margin of error no more than 3, the correct set of hypotheses
Make a scatterplot to determine what kind of relationship there seems to be between the two variables. Use the percent of lead removed as the response variable.
Consider a random sample of size n from an exponential distribution, Xi ~ EXP(1,eta). a) Show that Q = X1:n - eta is a pivotal quantity and find its distribution.
After calculating the sample size needed to estimate a population proportion to within 0.04, your statistics professor told you the maximum allowable error must be reduced to just .01. If the original calculation led to a sample size of 800, the s..
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