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Question : A financial company places adverts in three publications with probabilities of 0.2, 0.3 and 0.5 res. The probability that the company gets an enquiry from an advert in the first publication is .001. The probabilities from other two publications are .002 and .004 res. Given that the company has just received an enquiry, calculate the probability that it came from an advert in the first publication.
The accomanying table is a one way, independent groups ANOVA summary table with part of material missing.assuming an equal number of subject are there in each group. What is the value of F crit, using alpha 0.05?
The distribution of sample mean for samples of 500 homes is normal with a mean of 2.64 and a standard deviation of 0.06. Suppose you select a random sample of n=500 homes and determine that the mean number of people per home for this sample id 2.5..
you want to give a bonus to the top 5 of your sales people and extra special attention to the bottom 25. average sales
Standard deviation 2.8 inches. (a) If you choose one student at random, what is the probability that he is between 69 and 71 inches tall?
A flour mill produces flour in small bags before distributing them to wholesalers. The average weight of each bags is 8 kg with a standard deviation of 0.5 kg.
A manufacturer claims that the mean lifetime of its light bulbs is 55 months. The standard deviation of these lifetimes is 6 months. Twenty-two bulbs are selected at random, and their mean lifetime is found to be 56 months.
What is the sensitivity of the test and what is the specificity of the test - What is the PV+ of the test?
a lot of 100 semiconductor chips contains 20 that are defective. three are selected at random without replacement from
What assumption tests should be used? A fifth grade science teacher want to know if there is a relationship between final exam scores and overall course points after adjusting for a quiz score.
a pearson correletion of r 0.45 for a sample of n 18 individuals is large enough to conclude that there is a
A counseling psychologist is interested in determining whether the perception of a counselor's expertise is affected by the approach the counselor utilizes.
the supplies for the construction of a reinforced concrete building are supplied by the company a and b. the company a
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