5. A recent study indicates that simply giving college students (n-30) a pedometer canresult in increased walking (Jackson & Howton, 2008). Students were given pedometersfor a 12-week period, and asked to record the average number of steps per day duringweeks 1, 6, and 12.a. Which variables are described in this scenario and what are their scales ofmeasurement?b. Which test should you use?

Given that A recent study indicates that simply giving college students (n=30) a pedometer can…

Answered: 5. A recent study indicates that simply…

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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lili .... OFF References Mailings Review View >> Tell me Sh Draw Design Layout 12 AA Aa v ibri (Bo... 三三三三E Styles Dictate Create x A - 130 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 15 0.1154 33 1. 0.1385 51 2. 81 0.0769 3. 15 0.1154 4. 17 0.1308 93 5. 0.1538 113 6. 0.1308 130 7. a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 3 times per week? % English (United States) spioM 06 Focus JAN 13
A high school teacher at a small private school assigns trigonometry practice problems to be worked on via the net. Students must use a password to access the problems, and the time of log-in and log-off is automatically recorded for the teacher. At the end of the week, the teacher examines the amount of time each student spent working on the assigned problems. The data is provided below in minutes. Determine Mean, Median and Mode. 15 28 25 48 22 43 49 34 22 33 27 25 22 20 39
Consider the following scenario and answer the questions below: The ornithologist decided to investigate the effect of temperature on the migration of North American birds. Develop a hypothesis in the appropriate format. Identify the independent variable. Identify the dependent variable. Plan an investigation (what would she do to collect data?). Did she engage in basic science or applied science? Explain. Did she engage in inductive or deductive reasoning? Explain
The WISC-IV is a standardised instrument for measuring IQ in children. The population M = 100 and SD = 15. If a child scores 85 on the WISCIV then what % of children in the %3D population have a higher IQ? а. 60% ОБ. 90% О с. 84% O d. 75%
TABLE 2.5 Student teachers are trained to develop lesson plans, on the assumption that the writ- ten plan will help them to perform successfully in the classroom. In a study to assess the relationship between written lesson plans and their implementation in the class- room, 25 lesson plans were scored on a scale of 0 to 34 according to a Lesson Plan Assessment Checklist. The 25 scores are shown in Table 2.5. Use Tchebysheff's The- orem and the Empirical Rule (if applicable) to describe the distribution of these assessment scores. Lesson Plan Assessment Scores 26.1 26.0 14.5 29.3 19.7 22.1 21.2 26.6 31.9 25.0 15.9 20.8 20.2 17.8 13.3 25.6 26.5 15.7 22.1 13.8 29.0 21.3 23.5 22.1 10.2
Part A. Depression affects many people. 25 out of 100 people with untreated depression will lose at least one friendship while not receiving treatment. On the other hand, when people with depression are treated with medication and counseling, only 2 out of 100 will lose at least one friendship during treatment. The absolute risk of losing at least one friendship while being treated with medication and counseling is Answer: 2 / 100 = 0.02 = 2%
I need 41, 42, 43, and 44 please.
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Do various occupational groups differ in their diets? A British study of this question compared 98 drivers and 83 conductors of London double-decker buses. The conductors' jobs require more physical activity. The article reporting the study gives the data as "Mean daily consumption (+ se)." Some of the study results appear below. Drivers Total calories 2821 +44 Alcohol (grams) 0.24 0.06 Conductors 2844 +48 0.39 ± 0.11 Construct a 99% confidence interval for the difference in mean daily alcohol consumption between drivers and conductors.
This requires manual calculation as well as analyzing data using the statistical package R. The detailed rubric for this may be located in the guide as well as the document. You will be working with the KBP dataset provided in the course space. You will also need to use the document, Questions for KBP Survey. This document has selected questions as they appeared on the questionnaire that was administered to collect the data for this project. 1. Classify the variables by the levels of measurement used. Explain your choice of the levels of measurement. 2. Using R, generate a graph to represent the sample by alcohol usage in the past 4 weeks. What can you say about alcohol usage among this sample of young persons? 3. Using R, calculate the proportion of individuals by relationship status and report in a relative frequency distribution table. Respondents # Age of Respondent Sex of Respondents Relationship Status Age at first Sexual Encounter Practice Religion number of persons use…
A researcher is investigating the effects of sleep deprivation by testing people in the morning when they are well rested and testing again after they have been awake for 36 hours. Which of the following research designs should be used? a. repeated-measures b. independent-measures
Which of the following designs refers to a study in which the units of analysis are populations or groups of people rather than individuals (select one best answer)? Ecological study Case-control Study Cohort study Cross-sectional study None of the above

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