Mean

1. Descriptive analysis of RR% and GR% The mean is a measure of central tendency that obtained by dividing the sum of observed values by the number of observations, n. Data points can fall above, below, or even on the mean, it is widely considered a good estimate for predicting subsequent data points. . For the retention rate (RR %), the mean is 57.41 while it is 41.76 for GR%, the dependent variable. The minimum and maximum are basically the least and highest observed value. For the retention…

temperature. During the increase of the annealing temperature , the strengthening is more obvious. Annealing at 850 °C with low coiling temperature at 500 °C causes an increase of yield strength up to 600 MPa. Those values along with low elongation would mean the exclusion from deep-drawing steel qualities and, on the contrary, they would be regarded as high strength steel. This assertion is supported by the values of elongation at the level of 10%. Also a change in size of grain in the range of…

The first part of the experiment required one to trace the light rays going through a converging and diverging lenses. By setting up the light source towards the end of the paper and placing the lenses about 5 cm in front of the light the focal distances were found to be 14 cm for the converging lens and -5.5cm for the diverging lens. These focal distances theoretically make since because the converging lens causes the light rays to combine in front of the lens making it positive and the…

The preeminent design of the paper helicopter experiment would comprise of the best mean and standard deviation of the overall measured data. An in depth comparison of the mean value and the standard deviation of each variable will be discussed in relation to a measure suitable for a longer flight time and a more accurate landing. These variables will be discussed relevant to the data and information gathered from our experiment during testing. The ratio of each helicopter will be discussed in…

dyes are always the same (Davis et al, 2009). This means that if the dyes used in Skittles Sweets and Sours and Crayola markers of the same color were identical, their Rf values would have to be nearly the same. We calculated five Rf values for each dye that was found after performing the chromatography. The Rf values for the dyes of the blue Skittles are .498, .488, .542, .526, and .441. The statistics for these numbers are .499 for the mean, .498 for the median, no mode, .0389 for the…

For the Coach group and Supporter group, a 3-second mean hug duration is plausible since this value falls within the 95% confidence interval. Since it falls between the two limits, there is a 95% chance of the length hug occurring in each relationship group. Coach/Athlete: Lower limit= 3.77-2(.451)=2.87…

my eye. The first being the one labeled “Then and Now” which shows the difference in percentages from 2004 to 2013 in whether people described themselves as optimists or pessimists. The percent of Optimist decreased from 70% to 50%, which can only mean that more people negatively view the aspects of things which questionably brings up the question to why more people think this way? Sadness is a main part of thinking negatively which is also related to one’s surroundings and environment. This…

Results Yasumuro and Ikeda (2011) discovered statistically significant differences between the poor and enriched environments through exploratory behavior, various body patterns, and reactions to stimulus. The duration of exploratory behavior witnessed in the octopuses in the poor environment were notably less frequent than the standard or enriched environments, while the enriched environments displayed the most exploration of all three environments. Variations of exploratory behavior were seen…

has a strategy to reduce the length of stay (LOS) in the inpatient setting. The LOS was monitored over the past twelve months and the mean of each month was collected and presented in the data set (Table 1). It would be difficult to draw conclusion…

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…