Statistic

. Which inferential statistics would you choose for the following sets of variables? Explain your answers (refer to Figure 17.5 on page 384 in Polit & Beck). A. Variable 1 represents the weights of 100 patients; variable 2 is the patients’ resting heart rate. a. The inferential statistics utilized in this analysis is the Wilcoxon signed-rank test, the nonparametric two-group study involves two measurable (paired scores) one being the patients weight and the other resting heart…

non-stationary time-series variable may cause a spurious regression or non-sense regression (a symptom of spurious regression is that the R-square value is greater that Durbin-Watson test statistics) which is not desirable. After estimating the first regression, the R-square value is 0.99 while the Durbin-Watson statistic is 0.86. So if I continue with the data without correcting for non-stationarity, my estimated model will be a spurious regression model. I further checked for the stationarity…

parameters and statistics of the dataset. The variable of interest for this study is tip amounts, as that is what the owner of Sofrittos is analyzing. The population of the data set is tips received by Sofrittos waiters and waitresses, while the sample is the 80 tables of diners collected from the Bureau of Labor Statistics. The parameter of the study is average tip amounts at Sofrittos and the statistic is the tip amounts of the 80 tables found from the Bureau of Labor Statistics. The…

Promoting Bad Statistics by Joel Best gives us a first-hand look at how the media uses numbers to promote a certain concern. We see it daily on the news. They focus the number on gun control, inner city crime, unemployment, human trafficking, etc. The list could go on forever. While many people believe that statistics aren’t misleading, this article review will focus on how statistics in the media can be misleading. Now the question is “What does Joel Best mean by claiming that numbers are…

Non-mathematics majors doing statistics at university level in Cyprus: Factors behind their performance Nowadays, statistics education is ubiquitous at all education levels and across various disciplines (Scheaffer, 2002; Ben-Zvi and Garfield; 2010). Statistics courses have been incorporated into the curriculum programs in higher education institutions from the beginning of the 20th century (Verhoeven, 2009; Emmioğlu, 2011). A large proportion of university students are required to undertake…

Crime surveys and statistics are important because without it the government would have no information about unreported crimes. Surveys and statistics also recognise those most at risk of several types of crime. Also, it is used to collect data for crime prevention. It is a major source of information about levels of crime, public views to crime. The reality is that how diverse it is that the public is unware of the difficulty that in fact it is impossible to measure or count the actual…

Repeat the above steps but select the radio-button that corresponds to Median and in the Store results in: text area, place the median column. Calculating Descriptive Statistics ? Calculate descriptive statistics for the mean and median columns that where created above. Pull up Stat > Basic Statistics > Display Descriptive Statistics and set Variables: to mean and median. The output will show up in your Session Window. Print this information. Calculating Confidence Intervals for one…

Statistics is a branch of mathematics that involves collecting data and interpreting it. It includes a variety of tests. One example of a statistical test that is used to organize data is the one sample z-test. In this statistical test, there is only one group being tested. The one sample z-test is used to compare a sample statistic against a population Salkind (2014). It determines whether a sample can represent a population. The information provided by the one sample z-test gives enough…

Sociology 313 Final Assignment In Collins’ Statistics versus Words, he states how in order to have adequate research, one needs to provide a hypothesis to have validity. He argued that if you don’t come up with a hypothesis before you examine the phenomena, you would not be able to test the evidence fully. He states that if you create your theory after finding evidence, there is no way to test the validity of the theory using that evidence. According to Keynes, he stated that those who…

Before proceeding with any statistical procedures, I conducted a preliminary analysis using descriptive statistics and frequency analysis. Both were used to assess the characteristics of the data, check for violations of assumptions underlying the statistical techniques, as well as address research specific data requirements (Pallant, 2013). Using frequency analysis, I checked the minimum, maximum, and range of the categorical variables to identify errors and address the same. Additionally, I…