Weighted mean

“Where is Waldo” is a children's puzzle book where the reader tries to find a specific guy in the pictures. This may just seem like a plain, fun book with no other purpose than to entertain kids. However, in my opinion it has deeper meanings than that. So the question is, “Where is Waldo, really?” I think that Waldo can represent anything and is truly everywhere. He has no specific location just as how he is never in the exact spot on each page. As we get older, we start facing more and more…

1) where the true mean of the difference of history chapter pages read is the unknown variable, there is significant statistical evidence at the standard 0.05 alpha value that listening to music while reading or studying increases scope of study. Because the t-value is positive, it is reasonable to note that listening to one’s favored music has a positive impact on reading larger quantities. 95% of all samples of differences in pages of history books read taken will have a mean between 0.1101…

calculates annual mean nutrient concentrations, based on the statistical relationship between the estimated mean average…

Two campaigns have collected data and determined their response rates in percentages in five different mailing zones. Each campaign sent mail to the same zones but their results where different. In order to find out which campaign performed at a higher level the central tendency and the variability of the responses must be examined. After an examination it is clear that one campaign outperformed the other. But, with these results comes some questions about how and why these campaigns…

choosing the appropriate market risk premium. There are two historical equity risk premiums given for a time period from 1926 to 1999: Geometric mean and arithmetic mean. The geometric mean is a better estimate for longer life valuation while the arithmetic mean is better for a one-year estimated expected return. Therefore, we chose to use the geometric mean to coincide with the choice to use the 20-year yield on U.S. Treasuries, which is 5.9 percent. Next, we had to decide on a beta to use for…

belong to lower risk, while mean and maximum CR values of arsenic belong to the high risk level. In case of children, the potential CR values of groundwater ranged from 0.0002 to 0.015 with a mean value of 0.007 ± 0.004 for oral; 0.0001 to 0.0002 with the mean values of 0.0001 ± 6.55E-05 for dermal absorption. The groundwater CR values for adults for As varied from 0.0001 to 0.007, with a mean of 0.003 ± 0.002; for oral, 1.31E-06 to 3.46E-05; for dermal, with a means of 3.46E-05 ± 2.22E-05. The…

At each time point, a T-test statistic is calculated by comparing the mean values before and after this time point. The maximum T-test statistic value and the time is picked up. Then the probability of observing a maximum T-test statistic less than the observed maximum T-test value in a randomly drawn time series is calculated…

Together but alone which mean people exist in the room, but they actually not talking together and they are busy on their phone. Many people have addictive in their phone and usually not aware around them, which mean they usually do not have friends or talk a lot and usually they being shy when sitting with another person even though they know each other. For example, someone prefers to text on the phone and has a better skill then speak with others. Actually, when he/she sits with parent or…

"If I use cooperative learning, the students tend to veer off task ", where the paragraph number (10) was obtained the second rank with an average (3.52), with standard deviation (1.087), and with a degree of response (Agree). "The physical set-up of my classroom is a hindrance to using cooperative learning ", where the paragraph number (23) was obtained the third rank with an average (3.45), with standard deviation (1.063), and with a degree of response (Agree). 3- The rest of the paragraphs…

are illustrated in Figure 1. The baseline data presented both downward and upward trend pattern of nail cuticle-biting behaviors. The mean value of the baseline is 6 and the standard deviation is 1.26. The first intervention phase data a downward trend pattern can be observed, which signifies a decrease in the amount of nail cuticle biting behaviors performed. The mean value of the first intervention data is 2.16, with a standard deviation of 1.47. Once the HRT intervention was applied, the…