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Ninety percent of service calls regarding kitchen appliances involve a minor repair. For example, the customer did not read the instructions correctly or perhaps failed to connect the appliances correctly. These service calls cost $50. Service calls for major repairs are more expensive. Sixty percent of service calls for major repairs cost the customer $300 or more. What is the probability that a randomly selected service call cost $300 or more?
The probability a randomly selected service call cost $300 or more is ?
assume that a procedure yields a binomial distribution with a trial repeated n times. use the binomial probability
Perform the 5 steps of hypothesis testing procedure. Please present the calculations and results and Graphs. Make all possible observations and interpret the results
if 5 percent of automobiles in oakland county have one burned-out headlight what is the probability that in a sample of
there are two urns a and b. urn a contains 2 red balls and 1 blue ball urn b contains 1 red ball and 1 blue ball. an
it is claimed that in a bushel of peaches less than ten percent are defective. a sample of 400 peaches is examined and
These employees has been taken by systematic sampling, what is the value of k? The researcher would start the sample selection between what two values?
suppose x is a normal random variable with expected value 7 and standard deviation 3. then calculate the following
Develop a simulation model to help analyze and investigate the problem.
An experiment consists of flipping the fair coin three times and noting the number of heads and tails. A random variable x is defined to be two times the number of heads plus the number of tails.
What is the purpose of conducting an experiment? How does an experimental design accomplish its purpose and what are the advantages and disadvantages of an experimental design in an educational study?
Assume in a single game sudden death playoff between team A and team B that team A would win with probability 0.6.
A random sample of size 70 is drawn from population. Determine probability that mean annual salary is between $32,000 and $32,500?
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