Random variable

There is no significant difference in sales performance when compare males (mean=4232.34) to females (mean=5227.86). In week 2, the T-value (df=95) is 2.828 and the p-value derived is 0.006. Here, the possibility that the difference is due to mere random chance is less than 1% therefore the difference in sales performance between males (mean=4175.92) and females (mean=5675.97) in week 2 is strongly significant. A conclusive argument can be drawn that in week 2, females have a better sales…

concentration of 0.1 and dephosphorylations (d1, d2, d3, d4, and d5) having a concentration of 0.05. We set the growth signal (S) to 1 along with the initial concentrations of variables: MAPK, MAPKK, and MAPKKK in the dual-site phosphorylation and variables: KK as and K in the single-site phosphorylation. All other variables’ initial concentrations were set at 0. We ran MAPK activation over time in dual-site phosphorylation versus single-site phosphorylation to show the difference between…

stress affects college student’s performance. I will put fifty random college students in a Statistics class that will last for two months, 25 of those students will have no extra-curricular or jobs, and the second set of 25 will be participating in either or a sport or Greek life. The students will have a quiz every week, and I will monitor the results each week and compare the results at the end of the experiment. My independent variable will be the creation of stress, also known as the…

was the controlled variable which means that it was held constant during the entire experiment. The mass was connected to the string which represents the independent variable since we varied the length of the string throughout the lab. We tied a loop on the string to hang it on the clamp so the weight was free to move. The string was very lightweight compared to the mass due to being able to come as close to the ideal of a massless string as possible. The dependent variable was the period of…

Every experiment also needs control variables, which are variables that scientists want to be kept constant in our experiment. They do have a pretty big effect in our experiment because we choose to leave these variables constant in order to make sure our data is accurate, but they are not the main focus of our experiments. The control variables for this test are the size of the can which is 355 mL, the time we wait until we flip the can into…

between groups, however, the major difference is that the ANOVA independent variable can have any number of groups (Sukal, 2013). The question of interest for this mini-research proposal using the one-way ANOVA, is the following: Does the frequency in days of the week make a difference in having an ideal body weight? The one-way ANOVA is the most appropriate statistical test as the question identifies an independent variable that can have up to a maximum of 7 groups, to represent the days of the…

environment affects recall. Therefore, this study intends to look at the importance of contextual cues in memory recall and aims to further examine the findings of Godden and Baddeley by asking a group of 75 adult participants to memorise a group of random words in one of three…

the centre of the huddle then there would be less heat loss in the test tube. The independent variable was the position of the test tube in the huddle. This was changed by test tubes being located at three positions; edge & centre of the huddle and isolated. The dependent variable was the temperature change in the test tube which was measured using a thermometer after one minute intervals. Constant variable were the number of test tubes (15), temperature of initial water, amount of ice (1/4…

Finally, as explain from the above controlled variable was gender, just to keep it simple. All these variables played a huge deal when solving my hypothesis, as well as finding my data. It was very easy how I found most of my recipients, I asked my local friends, classmates, and workers, who I knew lived an active life, either…

Since the population that is being studied is a college campus a cluster sample is the best method to conduct the survey. Cluster sampling method is when the researcher divides the population into separate groups, called clusters. The campus has 32,000 students enrolled in order collect the sample you must separate the population by groups or in this case degree program. Once the population is separated by their programs randomly selected which group will participate in the study. After the…