Interquartile range

INTRODUCTION Multimorbidity, the simultaneous coexistence in individuals of more than one disease state, has become increasingly common in health care settings (1, 2). Patients who have multimorbidity are more likely to be admitted to hospital, experience premature death or a loss of physical functioning and have poor quality of life (3). Patients with significant multimorbidity are usually excluded from clinical trials. This has led to a scarcity of evidence in relation to appropriate…

randomly spread out from the target. It is important to identify the outliers; they have the potential to causes bias (Field, 2013) . For example, looking at the box plot it clear that the frequency is up to 75, but the outliers are displayed (beyond the range of data) 76 or more in this data signify a problem in the data (Triola, 2008) . Descriptive Statistics Figure 2 Descriptive Statistics Figure…

For quantitative data, the Shapiro-Wilk test for normality was performed. For data that were not normally distributed median and interquartile range (expressed as 25th -75th percentiles) were calculated and Mann-Whitney test was used for comparison between independent groups while Wilcoxon signed rank test was used to compare related samples. Spearman's correlation was performed. For normally…

One Sample T-Test: As proven by the one sample t-test (Figure 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…

Before we talk about measurement scales and why they matter we should first explain what they are. A compound measure allows us to measure different aspects of a topic people would find complex. This topic could range from stem cell research to abortion to gun control. The good thing about compound measures is they have a general reliability to them. What I mean is, if an error is made it often does not make the whole measurement go wrong. Compound measures should have several different…

difference between medians of 0.4 is 0.31 or 31% of the overall visual spread ((4.1-3.7)/(4.5-3.2)=0.31), is significant considering the sample size of 491. Thus, implying that the median for males to match/equal the median females, the male inter quartile range (IQR) should move 31% of the overall visual spread. From this we can make the decision that back in the population of females and males, based on this sample size, females are more agreeable than males. The standard deviation…

anorexia nervosa (AN), bulimia nervosa (BN), and binge-eating disorder (BED). Harvard Medical School, Department of Health Care also conducted recent studies showing that, “Country-specific lifetime prevalence estimates are consistently (median; interquartile range) higher for BED (1.4%; .8–1.9%) than BN (.8%; .4–1.0%). Median age of onset is in the late teens to early 20s for both disorders but slightly…

(78.24). The girls also had a lower minimum time value than the boys, 33.46 for the fastest female and 48.5 for the fastest male. However, it can be argued that the males were more consistent in their times than the females. The boys had an Interquartile Range of 84.8 while the girls had and an IQR of 97.98. This means that the middle 50% of the boys’ times were all closer together than the females. Also, the males had a lower maximum time than the females, 323.98 for the slowest male and 339…

Problem 1.17 In problem 1.17, the average age of pinon trees in the coast ranges of California was investigated. 500 ten-hectare plots randomly selected using a computer. The age of every pinon tree within each plot was measured and the average age of the plot was used as the unit measurement (Whitlock and Schluter, 2015, pg 20). The results of this investigation were used to estimate the average age of California pinon pines, making the population of interest in this study is all California…

Introduction This report considers whether gender, quiz result, lecture and SGT attendance affect university students’ exam results. The effectiveness of learning platforms must be evaluated so students reach their full potential. To achieve this, a sample of previous BSB123 students’ results and attendance will be summarised, analysed and interpreted. Data 2.1 Research Stanford University found that on average, males outperform females on mathematics tests (Niederle & Vesterlund, 2010),…