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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 sales of the bicycle (in thousands of dollars) and also the levels of media expenditure (in thousands of dollars) during the test month are recorded. State the multiple regression equation.
Using the letter M for male and F forfemale. Define a second sample space S and where the elements represent the number of females selected.
question the playing times of songs are normally distributed. listed below are the playing times in seconds of 10 songs
Don't quite understand the concept of computing confidence intervals. How would confidence intervals determine sampling design and data collection for information gathered.
Which of the following will have no effect on the break-even point in units?
If the value of y is 11 thousands, find the probability that these tires will last at most 15,227 miles. You MUST write your answers with 3 decimal places.
An analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in eighth graders. The number of older siblings in the sample observations ranges from 0 to 4.
sixty patients are enrolled in a small clinical trial to test the efficacy of a new drug against a placebo and the
you want to compare the reliability of two machines that insert chips onto electronic cards. the main problem is the
Calculated test statistic, decision about the null hypothesis interpretation of results, and a list of references consulted.
a set of final examination grades in a calculus course was found to be normally distributed with a mean of 70 and a
shown below is a portion of a computer output for a regression analysis relating y demand and x unit price.anovadf
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