Learning Task 2: Statistical Test Check!Directions: Determine the statistical test/s appropriate for the sample research. Moke sure fo evploin your decitionsentences.es fs esAppropiofeStotfsticalTestResearch TitleErxglionationRelationship between Acodemic Stressors and Leaming Preferences of Senicr HighSchool Students2 Reading Eectronic Leaming Materials as a Support for Vocabulary of Grade I Pupls3. Impoct of the Implementation of COVD - 19 Health Protocols in Supermarkets onConsumer Behavion4. Effects of Moning Exercise on the Health Arxiety Levei of Senior Citizens5. Measuring the Gadgets Usage ol Children af Home during QuarantineAeeimilation (Time Ercome

In the field of research, the design methodology can be of two types - quantitative and qualitative.…

Answered: Learning Task 2: Statistical Test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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using tables 2 and 3 attached: ) Are the data in this study dependent or independent? How do you know this? ) Which t test statistic in Table 3 is the greatest for the 6-month follow-up? Which variable is being examined with this test statistic? What are the groups being examined with this test statistic? ) Compare the pretest to 3 months and 6 months t test statistics for BMI from Table 2. What is your conclusion regarding the effects of the health-promotion intervention on the BMI long term? ) How would you describe the result of t = -1.45 in this study? ) Which t test statistic listed in Table 3 represents the smallest relative difference between the pretest and 3 months? Is it statistically significant? What does this result mean? ) What are the assumptions for conducting a t-test for dependent groups? Which of these assumptions do you think were met by this study?
Do wearable devices that monitor diet and physical activity help people lose weight? Researchers had 237 subjects, already involved in a program of diet and exercise, use wearable technology for 24 months. They measured their weight (in kilograms) before using the technology and 24 months after using the technology. (a) Explain why the proper procedure to compare the mean weight before using the wearable technology and 24 months after using the wearable technology is a matched pairs t test. Choose the correct explanation. A person's weight before and after wearing the device would not be independent; thus, the data from this before and after study should be analyzed using a matched pairs t test. O A person's weight before and after wearing the device would be independent; thus, the data from this before and after study should be analyzed using a matched pairs t test. O A person's weight before and after wearing the device would be independent; thus, the data from this before and after…
Different COVID vaccines are available today and the top five vaccines accepted by WHO are Moderna (MD), AstraZeneca (AZ), Pfizer (PF), Sinovac (SV), and Sinopharm (SP). Here are the sample data shows the usage of different vaccines, Use (Excel / manual) to calculate frequency, percent frequency & relative frequency of sample data? AZ MD MD AZ PF PF AZ PF SP MD PF SV MD PF MD AZ PF SV SV AZ MD AZ PF MD PF PF SV MD SV SV MD PF SV SV SP AZ SV SP SP MD
Researchers were interested in assessing whether stress levels are different at the beginning of the semester compared to finals week. To test this, stress was measured in 5 students at the start of the semester and then again at the end of the semester during finals week. Participant Stress 1 Stress 2 Difference Score (Di) (Di - Mdiff)2 1 22 22 0 2 32 34 -2 3 24 25 -1 4 28 30 -2 5 26 29 -3 What is the observed test statistic (i.e., tobs)? Round to 2 decimal places.
Using a sample of 500 adults with the following variables: genhelf - variable recording general self- reported health coded 1 = very good, 2 = good, 3 = fair, 4 = poor sbp - variable recording systolic blood pressure - age - age of the respondent in years sex coded 1 = male and 2 = female hi_sbp - indicator of high blood pressure coded 1 if the respondent's sbp is 130 or higher and 0 otherwise What type of chart is MOST appropriate for the variable sbp? a/ pie chart b/ bar chart c/ histogram
Look at the attached images. There is the normality test and the Mann Whitney test for the two groups of INR and PCV (PCV1/a, PCV2/b , INR1/a, INR2/b). Interpret the data using both tests and explain why there may or may not be differences between the two cohorts.
Different chemicals are tested to check their effects on different cloth materials. The chemicals will be used in one of the finishing processes. Five cloth materials are selected for testing and four chemicals will be used on each cloth material sample. a) Are there significant differences between four different chemicals? ( = .05) b) Considering your answers in part a., perform the appropriate tests to determine which chemicals differ significantly.
Describe two advantages a repeated measures t-test has over an independent sample t -test study design. Give an example of a study where a repeated measures design would be appropriate
Report an appropriate hypothesis test and use a 5% significance level. The alternative hypothesis for the One-way Anova F-test would be Group of answer choices Ha: Density affects firing temperature. Ha: Firing temperature affects density. Ha: Firing temperature does not affect density. Ha: Density does not affect firing temperature.
t-tests are widely used in public health research. Please list one scenario that two-sample t-test is appropriate, and one scenario that paired t-test is appropriate. Make sure to justify why the specific type of t-test is appropriate for the scenario.
Urgent please
On a trial basis, State College admitted 300 students from the lowest third of their high school graduation class. They were randomly divided into 3 groups. Group A received extensive training in study habits Group B received motivational lectures; and Group C received no special treatment. At the end of the year, the average grades of the groups were compared. Identify the following: * What is the Independent variable? * What is the Dependent variable? * Who is in the Experimental Group? * Who is in the Control Group? * What are at least 2 potential extraneous variables?

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