1. A geological study indicates that wells drilled in a certain area should strike water with probability 0.2. Find the probability that:
a) first strike of water comes in the 3rd well drilled
b) 3 strikes of water in 5 drills
2. A large elevator has a max weight limit of 10,000 lbs. Suppose a load has 45 boxes. This has a probability distribution with mean = 200 lbs and standard deviation = 55 lbs.
a) What is the probability that all 45 boxes can be loaded in 1 trip?
b) what assumptions have to be satisfied.
Solution Summary
This solution looks at well drilling (probabilities) in a geological study and weight limits for an elevator.
Please complete these 2 exercises from AppliedStatistics in Business and Economics.
8.46 A random sample of 10 miniature Tootsie Rolls was taken from a bag. Each piece was weighed on
a very accurate scale. The results in grams were
3.087 3.131 3.241 3.241 3.270 3.353 3.400 3.411 3.437 3.477
(a) Construct a 90 percent conf
1) Kindly explain to me the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented
2) How large would a population have to be for a sample to be appropriate (i.e., rather than measuring the whole population)
1. T F The only type of research in a business setting is applied research.
2. T F The ultimate purpose of basic research and applied research are identical..
3. A needs assessment may include the following types of data:
(a) Qualitative
(b) Quantitative
(c) Discrete
(d) Continuous
(e) All of the above
4. T F
