Project #4222 - stats

1) Construction company A is determining whether it should submit a bid for a new shopping center. in the past their main competitor, construction company B has submitted bids 70% of the time. If company B does not bid on a job the probability that company a will get the job is 0.40. If company B bids on a job the probability that company A will get the job is 0.25.  A) if company A gets the job, what is the probability that company B did not bid? B)what is the probability that company A will get the job? __________ 2) What is the preferred way for people to order fast food? A survey was conducted, but the sample sizes were not reported. suppose the results, based on a sample of 100 males and 100 females were as summarized in the table below. answer questions below. Dining preference       Male       Female      Total Dine inside                18          8               26 orders inside to go      16         15              31 orders drive through    66         77              143 ______________________________________________ Total                         100       100             200 a) if a respondent is selected at random what is the probability that he or she prefers to order at the drive through? b) if a respndent is selected at random, what is the probability that he or she is male and prefers to order at the drive through? c)if a respndent is selected at random, what is the probability that he or she is male or prefers to order at the drive through?  _________________ 3) A sample of 500 respndents was selected in a large metropolitan area to study consumer behavior. The resulting contingency table is shown below. enjoys shopping                  Male                  Female            total Yes                                    143                    222                  365 No                                      108                    27                   135 total                                    251                   249                  500   a)Suppose the respondent chosen is a female what is the probabilit that she does not enjoy shopping for clothes? P(does not enjoy shopping|female)= b)Suppose the respondent chose enjoys shopping for clothing. What is the probability that the individual is a male? P(male|enjoys shopping)= C) are enjoying shopping for clothing and gender of the individual independent? ________________________________ 4)There are seventeen member of a team. How many ways are there to select a team leader, assistant team leader, and team corrdinator?   ________________________________ 5) A municipla bond service has three rating categories (A,B, C). suppose that in the past year, of the municipal bonds issued throught a country 50% were rated A 40% were rated B and 10% were rated C. of the municipal bonds rated A  50% were issued by cities 30% by suburbs and 20% by rural areas. of the municipal bonds rated B 40% were issued by cities, 50% by suburbs and 10% by rural areas of the municipal bonds ranted C 70% were issued by the cities, 25% by suburbs and 5% by rural areas.   a) if a new municpal bond is to be issued by a city what is the probability that it will receive an A rating? b) what proportion of municipal bonds are issed by cities? c)what proportion of municipal bonds are issed by suburbs? ___________      

Subject Mathematics
Due By (Pacific Time) 04/20/2013 09:00 am
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