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The probability that an American CEO can transact business in a foreign language is .20. Ten American CEOs are chosen at random.(Round your answers to 4 decimal places.)
A. What is the probability that none can transact business in a foreign language?
B. That at least two can?
C. That all 10 can?
Is the binomial distribution chart skewed right?
In a particular region of Rhode Island, it is known that fisherman's trap on average of 32 pounds of lobster per day with a standard deviation of four pounds.
If student is chosen at random, determine the probability that he or she is sophomore and owns a credit card.
Compute the mean, variance and standard deviation for the grouped data. Based on the previous answer, how much could the realtor expect to make if he sells 3 houses?
You manufacture and sell an iron rod whose electrical conductivity is supposed to be 10.1. You plan to make 6 measurements of the conductivity of a rod you plan to sell.
You're asked to determine whether the workers live in the community. Your personnel department provides the following table:
Please share 3 real world examples of problems, which occurred due to the use of secondary data. Be specific about the consequences as well the secondary data used. You may use your own organization or research the net or literature for this one.
Which of the following is a major difference between the binomial and the hypergeometric distributions?
There are 4000 mangoes in a shipment. It is found that it a mean weight of 15 ounces with a standard deviation of 2 ounces.
Let's further suppose that there was good interrater reliability on these frequency counts of behaviours and that they are interval/ratio level of measure, normally distributed, and independent observations.
Name three elements of the inferential statistical analysis.
Estimate with 95% confidence the mean reduction in time it takes for someone who has taken the sleeping pill to fall asleep.
Determine the minimum required sample size if you want to be 99% confident that the sample mean is within 2 units of the population mean given sigma = 7.8. Assume the population is normally distributed.
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