Study Purpose: The purpose of this randomized controlled trial was to determine the impact ofan app-based digital care program to treat chronic lower back pain compared to usual treatment.Table 1: Baseline characteristics of patients (N = 177)VariableIntervention(n = 113)ControlP- value(n = 64)Mean Age (in years)Female, (%)Body-mass index (mean)Hours sedentary per day (mean)4737%25450.7348%240.500.475.95.40.07From this table, were the participants in the study groups shown to be similar in allvariables at the start of the study?1. YES or NO2. Explain your answer:

Answered: Study Purpose: The purpose of this…

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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FACTORIAL ANOVA, PART 4 of 4. What is the observed F value for the interaction effect? Is that observed values statistically significant? A researcher was attempting to determine whether or not gender and education level would have an effect on yearly income. After interviewing 76 employees within their county, they were able to get the following statistical output. What is the observed F value for the interaction effect? Is that observed values statistically significant?
FACTORIAL ANOVA, PART 2 of 4. What is the observed F value for the main effects? Are any of those observed values statistically significant? A researcher was attempting to determine whether or not gender and education level would have an effect on yearly income. After interviewing 76 employees within their county, they were able to get the following statistical output. What is the observed F value for the main effects? Are any of those observed values statistically significant?
True or False? A randomized controlled trial evaluates the efficacy of hydroxychloroquine, as compared to placebo, as a prophylactic treatment to prevent COVID-19 infection in high-risk healthcare workers. The study provides data on a number of demographic characteristics and medical conditions at baseline. The mean age of participants randomized to receive hydroxychloroquine was 31 years and the mean age of participants randomized to receive placebo was 34 years, with p = 0.13. We can conclude that there is no statistically significant difference in mean ages of participants randomized to receive hydroxychloroquine as compared to placebo.
A researcher with the Department of Education followed a cohort of students who graduated from high school in a certain year, monitoring the progress the students made toward completing a bachelor's degree. One aspect of his research was to determine whether students who first attended community college took longer to attain a bachelor's degree than those who immediately attended and remained at a 4-year institution. The data in the table attached below summarize the results of his study. 1. Determine the test statistic
Research engineers with the University of Kentucky Transportation Research Program have collected data on accidents occurring at all intersections in Lexington, Kentucky, over a period of 5 years. One of the goals to study was to compare the average number of left-turn accidents at locations with and without left turn only lanes to develop numerical warrants (or guidelines) for the installation of left turn lanes. a) Determine the population of the interest, its sample and variables. b) List one suitable method to collect the data.
1. Show a One-Way ANOVA using the dataset found in the given excel (Sheet name: Smoking). Copy the result of the statistics and provide an interpretation of it. Description of Data: A research was conducted to quantify the effect of cigarette smoking on standard measures of lung function in patients with idiopathic pulmonary fibrosis. 2. Show a Two-Way ANOVA using the dataset found in the given excel (Sheet name: Trauma). Copy the result of the statistics and provide an interpretation of it. Description of Data: The research compares different combinations of four types of psychiatric treatment (A, B, C, and D) and six physical therapy programs (I, II, III, IV, V, and VI). •(NOTE: This is my one last remaining question. So, please answer the two given situations.)
Speed Dating Listed below are attribute ratings of males by females who participated in speed dating events (from Data Set 18 “Speed Dating” in Appendix B). Use a 0.05 significance level to test the claim that females in the different age brackets give attribute ratings with the same mean. Does age appear to be a factor in the female attribute ratings?
The effects of heat stresses on the heat shield of the Crew Dragon spacecraft during re-entry was performed using complex computer programs that mimic actual flight using data gathered during the Apollo space program. What kind of study is this? -experimental -census -simulation -observational
In using statistical test in business, business practitioners face two types of errors: type I and type II errors. Discuss each type of error in detail by providing a hypothetical or real life business example. Based on your example, explain which type has more severe consequences? What is alpha level? Also, discuss what is p-value and its connection to type I error
A researcher is trying to determine which treatment method—sleeping longer hours, using a moisturizing cream, or drinking increased amounts of water—is best for reducing skin dryness. Which procedure should she use? Group of answer choices; Mean Independent samples t-test ANOVA Correlation
A researcher is interested in seeing what effect a particular type of drug has on an intelligence test, depending on the time of day that the pill is administered. The researcher computes a two-way ANOVA and plots the resulting cell means on the graph at right. Assuming that any obvious differences are statistically significant Is there a main effect for type of pill? Is there a main effect for time of day? Is there an interaction? 4. Describe the findings of the study in everyday terms
Social Media Use and ADHD. Exercise 2.23 introduces a study examining whether frequent use of digital social media by teens is associated with subsequent development of ADHD symptoms. Researchers rated the frequency of social media use as High or Low for each teen. Two years later, they recorded whether or not ADHD symptoms had been diagnosed. The results are shown in the table below. Use StatKey or other technology to test whether the proportion of teens being diagnosed with ADHD is higher for teens with a high frequency of social media use than for those with a low frequency. Show all details of the test. Let Group 1 represent the teens with high social media use and Group 2 represent those with low social media use. State the null and alternative hypotheses. Give notation of the sample statistic. Give value of the sample statistic accurate to three decimal places. Use a randomization distribution to find the p-value. Give your answer accurate to three decimal places. Social…

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