**Study on Classroom Decorations and Learning**Anna Fisher and colleagues (Fisher et al., 2014) conducted a study to determine if kindergarten students learn better in undecorated classrooms compared to decorated classrooms. The hypothesis was based on the idea that students could focus better in sparse environments without distractions such as posters and children’s artwork.**Study Details:**- **Participants:** 12 kindergarten-age children- **Conditions:** - Undecorated classroom - Decorated classroom- **Procedure:** Each child participated in science lessons in both environments and took a test immediately afterward. Scores ranged from 0 to 20.**Results:**Scores from each condition were recorded for comparison.| Subject | Undecorated (X₁) | Decorated (X₂) ||---------|------------------|---------------|| 1 | 19 | 17 || 2 | 15 | 14 || 3 | 14 | 16 || 4 | 19 | 15 || 5 | 17 | 13 || 6 | 18 | 13 || 7 | 15 | 16 || 8 | 15 | 14 || 9 | 16 | 18 || 10 | 20 | 15 || 11 | 19 | 12 || 12 | 18 | 16 || **Mean**| **17.33** | **15.08** || **St. Dev** | **1.92** | **1.68** |**Statistical Analysis:**1. **Hypothesis Testing:** - Null hypothesis (H₀): There is no difference in learning outcomes between undecorated and decorated classrooms. - Alternative hypothesis (H₁): Students learn better in undecorated classrooms.2. **Statistical Test:** - State whether the test is one- or two-tailed. - Determine degrees of freedom. - Identify critical values for α = 0.05.3. **Computation:** - Calculate the test statistic using the computational formula to derive SS (Sum of Squares) and S²/S (Variance).4. **

Hey, since there are multiple subparts posted, we will answer first three question. If you want any…

Anna Fisher and colleagues (Fisher et al., 2014) predicted that kindergarten students should learn better in undecorated classrooms compared to decorated classrooms, because students should be less distracted in sparse classrooms without distractions such as posters, maps, children's artwork, etc. They had a group of 12 kindergarten age children participate in a science lesson in a classroom without decorations and a classroom with decorations. The students took a test on the material immediately after each lesson (scores range from 0 to 20). Below are the number of correct responses on both tests for each child. Do kindergarteners learn better in an undecorated compared to a decorated environment?

Anna Fisher and colleagues (Fisher et al., 2014) predicted that kindergarten students should learn better in undecorated classrooms compared to decorated classrooms, because students should be less distracted in sparse classrooms without distractions such as posters, maps, children's artwork, etc. They had a group of 12 kindergarten age children participate in a science lesson in a classroom without decorations and a classroom with decorations. The students took a test on the material immediately after each lesson (scores range from 0 to 20). Below are the number of correct responses on both tests for each child. Do kindergarteners learn better in an undecorated compared to a decorated environment?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Dr. Mackintosh believes a new olfactory therapy would be more successful in promoting weight loss among obese patients. His patients are first weighed and then randomly assigned to olfactory therapy, dance therapy, or a control condition. At the end of the three weeks, the amount of weight lost is recorded. The results indicate no significant difference in the amount of weight lost between the three conditions. If true differences existed between the conditions, but they were not detected, what kind of error occurred?
A study is testing the effectiveness of a new allergy medication. Sixty people who reported they have allergies volunteered to be part of the study and were randomly assigned to one of two groups, as shown in the design web. 30 Receive Medication Randomly Assigned Compare Level of Allerg Symptoms after Severa Weeks 60 Subjects 30 Receive Placebo Which of the following accurately describes the benefit of comparison in the experiment shown in the design web? The level of allergic symptoms in both groups can be compared to see if the new medication had a significant effect. The overall level of allergic symptoms can be used to determine if the new allergy medication had a significant effect. The level of allergic symptoms in the group who received the medication can be used to determine if the medication had a significant effect. The level of allergic symptoms in both groups cannot be compared to determine if the medication had a significant effect because one group only received a…
Identifying individuals with a high risk of Alzheimer’s disease usually involves a long series of cognitive tests. However, researchers have developed a 7-Minute Screen, which is a quick and easy way to accomplish the same goal. The question is whether the 7-Minute Screen is as effective as the complete series of tests. To address this question, Ijuin et al. (2008) administered both tests to a group of patients and compared the results. The following data represent results similar to those obtained in the study. Patient 7-Minute Screen Cognitive Series A 3 7 B 7 15 C 4 14 D 5 13 E 7 9 F 5 15 G 11 25 The alternative hypothesis in words and null hypothesis in symbols for a two-tailed test is
In recent years there has been considerable controversy over the use of standardized testing of high school students. Supporters say that the practice is a good measure of both student progress and teacher performance. Opponents say that too much testing impedes learning and causes unnecessarily large expenses for the school districts. There are even reports that a significant number of high school students opt out of taking some of the standardized tests. In one large city where the school district reported that the average score on a national test taken by students in their junior year was 74, a large group of parents felt that this average was too low. The parents contracted a research company in an attempt to show that the average score was higher than the claimed average of 74. The research company took a random sample of 100 juniors and they collected the corresponding 100 exam scores for those students. - what hypotheses is most appropriate to deal with the problem above. - What…
The personality characteristics of business leaders (e.g., CEOS) are related to the operations of the businesses that they lead (Oreg & Berson, 2018). Traits like openness to experience are related to positive financial outcomes and other traits are related to negative financial outcomes for their businesses. Suppose that a board of directors is interested in evaluating the personality of their leadership. Among a sample of n = 16 managers, the sample mean of the openness to experiences dimension of personality was M = 4.50. Assuming that u = 4.24 and o = 1.05 (Cobb-Clark & Schurer, 2012), use a two-tailed hypothesis test with a = .05 to test the hypothesis that this company's business leaders' openness to experience is different from the population. Standard Normal Distribution Mean - 0.0 Standard Deviation 1.0 .7198 .1401 .1401 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 -1.08 1.08 Step 1. Ho: ; H;: a = .05. Step 2. The critical region consists of Step 3. For these data the standard error is and…
In recent years there has been considerable controversy over the use of standardized testing of high school students. Supporters say that the practice is a good measure of both student progress and teacher performance. Opponents say that too much testing impedes learning and causes unnecessarily large expenses for the school districts. There are even reports that a significant number of high school students opt out of taking some of the standardized tests. In one large city where the school district reported that the average score on a national test taken by students in their junior year was 74, a large group of parents felt that this average was too low. The parents contracted a research company in an attempt to show that the average score was higher than the claimed average of 74. The research company took a random sample of 100 juniors and they collected the corresponding 100 exam scores for those students. 15. Pick the hypotheses most appropriate to deal with the problem above. a)…
Roediger and Karpicke (2006) investigated whether the test-enhanced learning effect (the demonstration that repeated testing improves memory for material) was due merely to repeated exposure to material. They randomly assigned participants to one of two conditions(study-study or study-test) and to one of three interval conditions (final test at a delay of 5 minutes, 2 days, or 1 week). The dependent variable was the proportion of idea units recalled for an encyclopedia. How should this be labeled? a. 4x2 between-groups ANOVA b. 2x2 within-groups ANOVA c. 2x3 within-groups ANOVA d. 2x3 between-groups ANOVA
An athletic director proudly states that he has used the average GPAs of the university's sports teams and is predicting a high graduation rate for the teams. Why is this method unsafe? Choose the correct answer below. OA. This method is unsafe because the average GPA may differ for each team. Using the average of the average GPA of each team obscures the possibility that certain teams tend to perform less well in classes. B. This method is unsafe because there is more variation in the GPAs of the athletes than the average GPA of the university's sports teams. Strong students may offset weak students in calculating the average GPAS, which makes it appear more likely that most students are doing well. OC. This method is unsafe because it is dangerous to extrapolate into the future. Classes in university tend to become more difficult, which makes it less likely that the average GPA will hold as time goes on. D. This method is unsafe because there is a minimum GPA required to graduate. If…
A poll asked 998 adults "If purchasing a used car made certain upgrades or features more affordable, what would be your preferred luxury upgrade? The results indicated that 8% of the males and 15% of the females answered window tinting. The poll description did not state the sample sizes of males and females. Suppose that both sample sizes were 499 and that 41 of 499 males and 75 of 499 females reported window tinting as their preferred luxury upgrade of choice. Complete parts (a) through (d) below. a. Is there evidence of a difference between males and females in the proportion who said they prefer window tinting as a luxury upgrade at the 0.05 level of significance? Let group 1 be the males, and let group 2 be the females. State the null and alternative hypotheses. Choose the correct answer below. OA. Ho: 1 ₂ Н1:1 > 12 OC. Ho: ₁²₂ H₁: 1 ₂ H₁: ₁ ≤₂ Calculate the test statistic. XSTAT = (Round to three decimal places as needed.) Determine the critical value. The critical value is O B.…
Identifying individuals with a high risk of Alzheimer’s disease usually involves a long series of cognitive tests. However, researchers have developed a 7-Minute Screen, which is a quick and easy way to accomplish the same goal. The question is whether the 7-Minute Screen is as effective as the complete series of tests. To address this question, Ijuin et al. (2008) administered both tests to a group of patients and compared the results. The following data represent results similar to those obtained in the study: Patient 7-Minute Screen Cognitive Tests A 3 11 B 8 19 C 10 22 D 8 20 E 4 14 F 7 13 G 4…
Chapter 9. 6)A poll surveyed 341 video gamers, and 81 of them said that they prefer playing games on a console, rather than a computer or hand-held device. An executive at a game console manufacturing company claims that the proportion of gamers who prefer consoles differs from 26 %. Does the poll provide convincing evidence that the claim is true? Use the 0.05 level of significance and the P-value method.