Mean squared error

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…

The area sampled in squared centimeters goes on the x-axis because it is the independent variable. Whereas species richness goes on the y-axis because it is the dependent variable. Based on this sample the prairie habitat seems to be more species rich. This approach does not provide a definitive answer to the question because this is a single sample. In order to provide a more accurate answer to the question of which habitat is richer, more samples must be included and analyzed in order to…

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…

William Ward Assignment (no more than 2 pages single-spaced): 1. What does Abelson mean by “Statistics as a principled argument” in your own words? By a principled argument, I believe that Abelson means that there should be a method to statistics. Not necessarily that it should be overly formalized or technical, but one with sound judgement. Abelson argues that good judgement with statistics in social science has been lost because there is considerable focus on null hypothesis testing (Abelson…

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…

complex and contextual needs of their students, instead of focusing on what students can be doing differently. She points out that basic writing students are not behind and need to “catch up” to any particular level, but there must been a more effective means of communication needs to be established between the students and teachers (291). Shaughnessy presents four stages of development as a basic writer instructor and explains how educators move through these stages before becoming competent to…

Methodology Research objectives The objective is to examine how quality of sleep impacts quality of life among undergraduate students at the University of Oklahoma. The aim of the study is to provide a better understanding between sleep quality and quality of life. Author Wong found that sleep quality has direct and indirect effects on college students ' intellectual functioning, medical and cognitive health (2013). Our study aims to provide insight on the ways in which sleep quality influences…

fundamental care including the administration of medicines. Medication checks are extremely important in preventing prescription errors and consequent risk to patients (Fitzgerald, 2009). Medication errors are becoming increasingly prevalent following a patients discharge from the hospital. Barnett, et al. (2014) states that up to 70% of patients experience medication errors on discharge or during a transfer to another care setting. Safety management is extremely important. It is about…

The Text The Comedy of Errors is one of Shakespeare’s earlier plays. The first recorded performance of the comedy was on December 28, 1594, as part of the Christmas festivities at Gray’s Inn in London. The exact date that the play was written is uncertain, but it is generally agreed that it was written sometime during 1589-1594 and between The Two Gentlemen of Verona and Love’s Labour’s Lost. It was first printed in the First Folio in 1623, seven years after Shakespeare’s death, and is…

Analytical Comparison of The Comedy of Errors by William Shakespeare and The Parent Trap by Nancy Meyers How has comic concerns and comic techniques developed and changed over time? As society innovates, the humor associated with that society innovates as well. This exploration illustrates the extent on which narratives, comic techniques, characters, and thematic concerns have changed with the passage of time by comparing The Comedy of Errors by William Shakespeare (pre-20th century) and The…