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Create the Venn diagram:
A - you work for an insurance company. 80% of your company's staff is sales force and 70% of your company's sales is force is male. in your company as whole , 60 % of the staff is male .
1-Create the Venn diagram for this data (unite draw two circles, on represent male and the other represent on the sale force.
2- what portion of your company's staff is male and on the sales force?
3- What portion of your company's staff is female and on the sales forces?
B About 55% of emergency room visits are unnecessary, assuming each emergency room visit is independent. (Hint: first define the random variable x then write the objective of each question in terms of x.
1 if you randomly select 15 patients from those visiting the emergency department what is the chance that all of them need tobe in the emergence.
2 What is expected number from the 15 randomly selected patients, who do not need to be in the emergency room and what is the standard deviation of the number?
3 Suppose the distribution of unnecessary emergency room visits can be approximated by normal distribution what is the probability that at least two of them need be in the emergency room?
Let X 1 and X 2 be two independent populations with population means μ 1 and μ 2 respectively. Two samples are taken, one from each population, of sizes n 1 and n 2 re
Coefficient of Variation or C.V. To compare the variability between or more series, coeffiecnt of variation is used, it is relative measure of dispersion, it innovated and used
(a) Average rainfall during the month of January is found to be 58 mm. A Class A pan evaporation recorded an average of 8.12 mm/day near an irrigation reservoir. The average
Prediction Inte rval We would like to construct a prediction interval around which would contain the actual Y. If n ≥ 30, ± Zs e would be the interval, where Z
Review the Learning Resources and the media programs related to t tests. For additional support, review the Skill Builder: Research Design and Statistical Design and the Skill Buil
Ask question From the household budget survey of 1980 of the Dutch Central Bureau of Statistics, J. S. Cramer obtained the following logit model based on a sample of 2820 househol
For the data analysis project, you will address some questions that interest you with the statistical methodology we are learning in class. You choose the questions; you decide h
Importance and Application of probability: Importance of probability theory is in all those areas where event are not certain to take place as same as starting with games of
Consider the following linear regression model: a) What does y and x 1 , x 2 , . . . . x k represent? b) What does β o , β 1 , β 2 , . . . . β k represent?
how to interpret results, a good explanation to help me understand.
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