Question 15The most important quality of a test or assessment instrument is objectivity.TrueO FalseQuestion 16A group of students completes the 12-minute run prior to a six-week jogging unit. At the end of the unit, the 12-minute runtest is administered a second time. The instructor is interested in knowing if there is a statistically significant difference in theresults of the two tests. To answer this question, the appropriate statistical test would be:O Independent Samples T-TestO the dependent sample T-TestO multiple regression analysis.The One Sample T-TestO simple analysis of variance.ts

“Since you have posted multiple questions, we will provide the solutiononly to the first question as…

Answered: Question 15 The most important quality…

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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What is the sample difference in means? Question 7 options: a. Lake Rick sample is non-normal, so no comparison is possible. b. 0.5125 kg c. observed p= 0.0167, reject Ho: mean(1) - mean(2) =0 at =0.05. d. +- 0.5 kg e. 0.6572 kg
Consider the sample consisting of the following nine results : 2.3, 7.2, 3.7, 4.6, 5.0, 7.0, 3.7, 4.9, 4.2.Find the upper quartile.
You are interested in testing if there is an association between marital status (married vs. never married) and BMI (quantitative). Which of the following is the most appropriate statistical test that you will you use? A. One-sample T-testB. Independent Sample t-testC. Chi Square testD. None of the above
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Dr. Carlton conducts a study to determine the effectiveness of a new intervention for those suffering from eating disorders. He compares patients' weights before the intervention to the same patients' weights after the intervention. What is the appropriate statistical test? a. paired samples t test b. between-subjects, one-way ANOVA. c. independent-samples t test d. Mann–Whitney U test
De SFU The analgesic effects of music are well known, but most of the studies have been done with adults and most of the music has been classical. You want to know whether children who choose their own music or audiobook to listen to after a surgery experience less pain and whether that depends on a severity of a surgery. To answer this question, you asked children who underwent minor and major surgeries to listen to music or a story of their choice, or to sit with noise-cancelling headphones for 30 minutes and then to point to a pain face that best illustrated their level of pain. PAIN MEASUREMENT SCALE
A one-way ANOVA was conducted at ? = 0.05. The study involved three (3) different groups with 12 subjects in each. The means for each group were as follows: ?1 = 10.92, ?2 = 13.83, ??? ?3 = 14.92. The sum of squares values is shown in the table below.
A dietitian wishes to see if a person's cholesterol level will change if the diet is supplemented by a certain mineral. Seven subjects were pretested and then took the mineral supplement for a six-week period. The results are shown below in the table. Use a paired samples t-chart at a = 0.01 significance level to see difference (Before - After) between the cholesterol levels. State the hypotheses and conclusion. Also, conduct a 99% confidence interval. Subject 1 Before 210 After 190 2 205 170 3 208 210 4 192 188 5 178 173 6 244 228 7 211 198
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