Normal subgroup

1. Z- test is used when the sample size is large enough n>30, the population standard deviation is known, and population is normally distributed. Example: Is the mean of systolic blood pressure level for women use of oral contraceptives is identical with women does not use of oral contraceptives, the sample mean > 30, we known the population standard deviation and it is normally distributed. H0: µ1=µ2 H1: µ1≠µ2 2. t- test is used when the population standard deviation is…

09.07 Task 1—Normal Distribution Scores on a statewide standardized test are normally distributed with a mean of 12.89 and a standard deviation of 1.95. Certificates are given to students whose scores are in the top 2% of those who took the test. This means that they scored better than 98% of the other test takers. Marcus received his score of 13.7 on the exam and is wondering why he didn’t receive a certificate. Show all work to determine whether Marcus’ score was high enough to earn a…

Implementation of Bayesian Method for basic pattern Classification Abstract: This document describes an example of basic pattern classification using the Bayesian method. Based on given two dimensional (2-D) training data for two classes, we created a classifier using discriminant function (which is the logarithmic version of Bayes formula) and used it to classify provided test data. We estimated the necessary statistical parameters, such as mean covariance and prior probabilities, from…

Data analysis offers an insight into what students know, should know, and what can be done to meet their academic needs. Students deserve an education that will provide opportunities for them to learn and grow. However each student has a unique background, strengths and weaknesses that play a significant role in educating them. When educators and parents can appropriately analyze and interpret data, they can make informed decisions that will significantly affect student-learning experiences.…

On the four subtests Danny’s full scale score was 55 which is in the extremely low range. The test like everyone does have a small degree of error the low-probability is 90 out of 100 that the true score is between 31 and 45. Danny score is ranked at 0.1 percentile which means that Danny scored as well or better than 0.1 of the examinees his age. The second test Danny was given was the Oral and Written Language Scales (OWLS). The OWLS is an assessment of receptive and expressive (oral and…

Figure 3 shows the voter turnout in the dataset years as the lines are representation of the countries Figure 4 shows an easier explanation of average of voter turnout for the countries in the dataset. This shows the overall to give the average turnout because figure 4 gives an understanding of this. The countries that have higher turnout are more of List PR and the lower ones are FPTP. An interesting outcome of this looking at the Scandinavian countries all have mostly higher turnout comparing…

The Infinity POM By: Vinayak Prathikanti, Varun Popli, & Alan Xiao For the second month, we had the Infinity POM, and it definitely made us think a little. The problem said to consider all of the infinite numbers between 0 and 1, then all of the numbers on the number line. Which one of these is the larger infinity? Now before we say anything else, we want to tell you that this is an extremely open ended problem, and that it is very hard to argue one side. While this is true, we…

between student athletes having life “made” and a normal student. Student athletes face missing class due to sporting events, juggling homework and practice and dealing with the fatigue that comes with practicing often. A normal student is faced with the stress of being away from home for an extended amount of time, challenges brought on by classes, and balancing new social roles that emerge. A student athlete has to deal with the issues that the normal student is faced with on top of the issues…

teachers are concerned that she is falling behind academically and socially, so an appointment was requested. Her mother reported that there were no remarkable concerns during her pregnancy with Sallie. Sallie’s developmental milestones are all within normal limits. Sallie’s mother reported that when Sallie was a toddler, she would become frustrated when her parents were unable to understand her. Sallie is in the 3rd grade at Valencia Elementary School. Her parents and teacher are concerned…

One of the first rules that is taught when learning Calculus is L’Hospital’s rule. The rule provides an easy technique to solve for a limit that has the indeterminate form 0/0. To get past this roadblock, L’Hospital’s rule allows for the individual differentiation of the numerator and denominator, and taking the limit of the result. If after the first application of the rule the limit once again produces the indeterminate form, it is possible to apply L’Hospital’s rule again. There is mystery…