Normal distribution

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…

P(x<0) P(x>1) P(x?4) P(4 5. Calculate the mean and standard deviation (by hand) for the MINITAB created binomial distribution with the probability of a success being ½. Either show work or explain how your answer was calculated. Mean = np, Standard Deviation = Mean: Standard deviation: 6. Calculate the mean and standard deviation (by hand) for the MINITAB created binomial distribution with the probability of a success being ¼ and compare to the results from question 5. Mean = np,…

A total of four hypotheses were examined using the following variables: feelings of tension and anxiety before and after watching a video in which a news story covered a student going to a college campus with the intent of harming people, perceived threat while watching the video, perceived threat while watching similar news coverages, the number of hours a day spent consuming news, and participant gender. First, to test the hypothesis that feelings of tension and anxiety will be higher after…

which 500 males and 500 females. The above five different parameters mean between the male and the female were compared using Z test. The Z test was applied because the total sample size was 1000. It was assured that the samples were collected from a normal population whose parameters were unknown. Hence the Z test was applied as under:- Z= (((x_1 ) ̅- (x_2 ) ̅))/√((〖σ_1〗^2/n_1 + 〖σ_2〗^2/n_2 )) Where: (x_1 ) ̅ = mean of sample 1/ group 1 i.e. male subject, (x_2 ) ̅ = mean of sample 2/ group 2 i.e.…

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…

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 scenario. It is important to note that the second…

-Four Day School Week- I bet you would love a four day school week, but is it unhealthy ? Yes actually it is very unhealthy for us and I will tell you why. My goal is to prove that my side of a four day week schedule. I have been thinking about this topic, and know that i 've studied it i feel good about it.Students need more time to to learn a four - day - week - schedule is not enough. A three day weekend gives less memory retained. Sometimes students do not think that their home is safe. My…

period and places being discussed. Different cultures, time periods, and the 107 billion people that have ever lived have shaped and molded “gender roles” to their liking but, the whole discussion can be boiled down to one thing and that’s the idea of normal. Normality is defined as a state of being typical, used or expected. In essence this is what gender roles are. The are expected…

EXSS 2025 Motor Control and Learning Experiment 4: Reaction, Movement& Response Time in Decision-Making Tasks I. Question 3: (i) Why are multiple repeated trials in each task required (ii) Why do we need to complete checks on the data (identify errors etc)? (iii) Why was there a variable fore-period between the start of a trial and the appearance of a stimulus in the tasks? (iv) Why was randomization necessary from Task 1b onwards? (v) Why was 80%(congruent) vs 20%(incongruent) split used in…

Below is the “study guide” for the MidTerm Exam. Of the 100+ questions below – 65 of them are the MidTerm. No answers are provided in the study guide (since the whole idea is for you to” review and study” the material to prepare for the test). True or False Chapter 01 1. Much of managerial accounting is directed at gathering useful information about costs for planning and control decisions. 2. Direct materials are not usually easily traced to a product. 3. A variable cost…