The population of interest for this study were employed women (ranging in ages from 18-45) living in the United States. A list of employees from four different types of occupations were used as a sampling frame to form a population to sample from. Employment records from traditionally male-dominated workplaces: Engineering and police work as well as from female-dominated workplaces: nursing and reception work (INSERT CITATION FROM WEBSITE). By using this sampling frame, it should represent a variety of different women socio-economic classes. Women were recruited based on random selection based on age and occupation within a given company. Participants were compensated $25 dollars for their participation. To help aid in involvement a…
Describe the sample
This study sample involved 970 women RN from 47 nursing department, such as general, oncology, intensive care units, operating rooms, and outpatient units.
Describe the sample’s characteristics and demographics
Researches used the sample in three groups (tables) .One of them in the incidence (daily,weekly,etc) of violence by type of violence(physical , threats, and verbal abuse) in nursing department .The second one, in relationships of nurse characteristics,…
Thus, we should analyze the accuracy of sampling method here.
At the first, we should determine use which sampling method. There are four sampling types listed below :
Simple Sampling: It uses a random selection of sample from the population. For example, if we want to select 20 random employees as the sample from the IT department University XYZ: we should use a random-number generator to generate 20 numbers between 1 and 40 and select 20 staffs who belong to these numbers.
How was the sample selected? Were demographics collected? to particular characteristics of a population. ... Examples of demographic characteristics include age, race, gender, ethnicity, religion, income, education, home ownership, sexual orientation, marital status, family size, health and disability status, and psychiatric diagnosis.
“Sample used was a convenience sample (N=84) of women from 2 area hospital systems and 1 cardiovascular clinic in central north Carolina.”
I found my research participants through snowball sampling. Snowball sampling is a well established practice of asking respondents to recommend other possible research participants. Which in my case, the respondents willingly helped to share my survey link. The big advantage of this method is that it increases the number of respondents because people become more positive towards a researcher and are more willing to cooperate when introduced to someone they know. With snowball…
There are different types of parametric tests to determine if a statistically significant difference is present.
An independent-samples t-test is used when comparing two groups on one continuous dependent variable that is normally distributed.
A paired-samples t-test is used when you look at the differences of one group across two time periods or observation periods.
ANOVA tests are used when we are examining more than two groups or more than two observation periods.
Slide 3: Our null…
1. “When investigating a large population, it is often impractical and usually unnecessary to measure all the elements in the population of interest. Typically, a relatively small number of subject or cases is selected from the larger population.” (McMillian, 2012, p.96)
According to McMillian (2012), population is a target you want to study to develop knowledge and to create action plans to assist those individuals. An example is when a researcher use a group of students with autism to find out…
The two-sample t procedure is appropriate to use in this experiment in order to see if there is a difference in the two
population means of stride length in the two different species, N. rattus and N. squamipes. This is because the boxplots
appear to be roughly symmetrical, as well as, both normal quantile-quantile plots look roughly linear. Considering
two-sample t-procedures are quite robust to violations of the normality assumption, the t-procedure will likely
perform well in this…
Sample Case Analysis (Case 10.1)
First read the case carefully. In this instance Cregg Hart is interested in knowing if the
rivet diameter from a potential new supplier is the same as the diameter from their existing
supplier. This lends itself naturally to do a confidence interval or suitable confidence level,
say 95% or do a hypothesis test assuming the mean diameters from the two suppliers are
Next open the Excel file which you can download from CANVAS Excel files and into…
sampling in determining soil nutrient levels. Soil samples collected from Flinders Campus were used to determine their pH, salinity, ammonium, nitrate, phosphate, and nitrite levels.
Unless there is a specific problem detected, the most common reason for undertaking soil analysis is to detect the levels of essential nutrients (Guo, 2009). The commonly analysed nutrients in most samples submitted to the laboratory include macronutrients like potassium, phosphorus, and nitrogen as…