Random walk hypothesis

significantly faster reaction time than the ‘no caffeine group’ and the 100mg caffeine group (group 1). However, the ‘no caffeine group’ had a slight faster reaction than the 100mg caffeine group (group 1) Discussion The results do not support the hypothesis that reaction time will be faster amongst treatment group participants was not supported. The mean score of treatment group (100%) was higher than control group, which indicates that participants who consumed caffeine actually took longer…

Discussion: In sample, B there was 16% salt, which is unnaturally higher than the global average of 3.5%. When I asked about the reason of this, I found that the water was artificially created. This was also the case of Sample, A which had 9% of salt. That is about 3x the amount of salt from the global average. All though this is not an experiment with data, that we can apply to real life, it was still great fun to do the experiment and the lessons I learnt will stick with me for a long time.…

Quantitative risk analysis is the one which follows the Qualitative analysis, and gives a numerical priority rating to project risks (PMI, 2009). Based on the PMBOK (PMI, 2013) quantitative risk analysis “… is the process of numerically analyzing the effect of identified risks on overall project objectives (p. 333).” This is also a process for the PM and project team to get risk data to support making decisions, which can help to reduce project uncertainties (PMI, 2013, p. 333). Based on the…

aspect of evaluating credit derivatives, the copula function has gradually become the main approach in pricing CDO (Burtschell & George, 2005). In Li (2000) paper, a new random variable named ‘time-until-default’ was created to demonstrate survival time of each defaultable entity. And the copula function approach is based on this random variable to evaluate the default probability of financial instruments. Specifically, copula function specify the joint distribution of the survival times after…

precise, as the average weight difference is identical to that of the weight difference caused the glucose solution. Low levels of precision can be accounted for by random errors. Random errors are errors caused my unpredictable factors such as wind change or a mistake in the method. In this experiment, there are many possible sources of random errors that may have influenced the results and these may have…

however, the issue is now impacting the entire department. Hollensbe (2000) noted that success in open-goal plans is due to goal settings. The performance plan involved looking at the overall performance model in different sections: calls per hour, random sample method, and performance improvement. The call model showed that the calls per hour could be changed from a per hour model to a per month model. This allowed agents that were struggling with hitting the per hour goal, to have the…

Definition 1.1 A random forest is a classifier consisting of a collection of tree structured classifiers { , k=1, ...} where the are independent identically distributed random vectors and each tree casts a unit vote for the most popular class a input x . Use of the Strong Law of Large Numbers shows that they always converge so that overfitting is not a problem [] . The accuracy of a random forest depends on the strength of the individual tree classifiers…

(the insurer) agrees to pay to the other (the policyholder or his designated beneciary) a dened amount (the claim payment or benet) upon the occurrence of a specic loss. These losses are realised as a result of the occurance of events that are random and not easily predictable. Since it is the business of…

The lottery is played all around the world. More than two-thirds of the citizens of the state. Anny three digit number can be placed from 000 to 999. After than the randomly draw a number. A number is drawn at random and announced by the state. The winner gets a prize. The probability that the correct 3 digits in the right order is selected is at an odds of 1 in 1,000. So if If a ticket costs two dollars and the winner must pick a sequence of five digits then if There are 10^5=100,000 different…

Goals According to the flow chart above, we need to generate a binary sequence of 0's and 1's, the length of which is 2N bits, that occur with equal probability and are mutually independent for which a ‘rand’ function is used. The data is then passed through a QPSK modulator to produce N complex symbols of {±1 , ±1j}. At the receiver, noise is added to the transmitted signal and the resultant signal is then passed through the QPSK demodulator to produce estimates of the transmitted binary data.…