Based on the data below, what is the Cronbach's alpha coefficient?SubjectTrial 1Trial 21352236.5434a. .60O b. 53C. .49O d. .44

Given problem Given that Based on the data below, The Cronbach's alpha coefficient is = ?…

Answered: Based on the data below, what is the…

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 statistical test would you use for each of the following scenarios? What would you set your alpha-level at? Dahlia is interested in how depression impacts willingness to exercise and go to the gym. In order to do this, she has to have a large sample size, so she decides to send out a survey to all college students at SUNY Cortland. Once she receives 80% of the surveys back from the students she begins to record the data. Because of the responses to her questionnaires, she will not have normally distributed data. In this case, what might be the best statistical test to use to determine whether going to the gym/willingness to exercise is impacted by depression? Why?
Use the following sample data to answer the next questions. At the same time each day, a researcher records the temperature in each of three greenhouses. The table shows the temperatures in degrees Fahrenheit recorded for one week. Answer the ANOVA hypothesis steps below. (α= 0.025) Greenhouse 1 Greenhouse 2 Greenhouse 3 73 71 67 72 69 84 73 70 85 66 77 73 86 75 85 71 65 80 72 73 75 70 71 84 H0: Ha: F value: F-critical value: p-value: Conclusion: (Example answer: Reject or Fail to reject)
Two-Fa 23. The following data are from an experiment comparing three different treatment conditions: A 1 N = 15 2 5 ΣΧΧ-354 1 6. 9. 8 8 T = 10 T = 20 T = 30 SS = 14 SS = 30 SS = 30 %3D a. If the experiment uses an independent-measures design, can the researcher conclude that the treatments are significantly different? Test at the .05 level of significance. b. If the experiment is done with a repeated-measures design, should the researcher conclude that the treatments are significantly different? Set alpha at .05 again. c. Explain why the analyses in parts a and b lead to different conclusions. 24. The following data are from a repeated-measures study comparing two treatment conditions.
The average national salary is 45,000 (in this example, 45 represents 45,000). I take a sample of 14 individuals in San Angelo and measure their average salary and obtain the following data: Individual 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Salary 45 56 60 65 60 63 54 51 27 29 34 35 35 37 Conduct a test (at an alpha of .05) to answer whether or not San Angelonian’s salary is significantly greater than the national average. Null (H0): ________________________________ Alternative (Ha): ________________________________ Degrees of freedom (from calculation/Jamovi): ____________
4. Complete the Cronbrachs Alpha for: When you compute your alpha- then interpret is this score considered acceptable? ID Item 1 Item 2 Item 3 Item 4 Item 5 1 8 9 7 8 8 2 5 6 8 4 5 3 1 2 1 1 1 4 4 3 4 5 4 5 1 3 2 3 2 6 5 4 5 6 5 7 2 3 4 2 4 8…
eMr Jonanl f 20iPebI, QUESTION FOUR: The results of a random sample of children with pain from musculoskeletal injuries treated with acetaminophen, ibuprofen, or codeine are shown. to conclude that the treatment and result are independent? the table. At a = 0:10, is there enough evidence Acetaminophen (c. 1) Ibuprofen (c. 2) Codeine (c. 3) (r. 1) Significant Improvement (r. 2) Slight Improvement Total 58 (66:7) 81 (66:7) 61 (66:7) 200 42 (33.3) 19 (33:3) 39 (33:3) 100 100 100 100 300 OUESTION FIVE- CAMON 11 AI 16M AI Clear Selfie
15
Carbohydrates in Candies. The number of grams of carbohydrates contained in 1-ounce servings of randomly selected chocolate and nonchocolate candy is listed here. Is there sufficient evidence to conclude that the difference in the means is significant? Use Alpha= 0.10. Chocolate: 29 25 17 36 41 25 32 29 38 34 24 27 29 Nonchocolate: 41 41 37 29 30 38 39 10 29 55 29
Given the following data and using Jamovi, test (at an alpha of 0.05) whether type of music influences heart rate (measured in beats per minute, bpm). Participant Rock Classical Heavy Metal ROW MEANS = 1 70 64 90 74.67 2 78 69 85 77.33 3 80 72 67 73 4 82 65 100 82.33 5 81 67 120 89.33 6 80 58 98 78.67 GROUP MEANS = 78.5 65.83 93.33 Total mean = 79.22 What are the degrees of freedom for between persons? ________ What is the critical value (from table): ___________________
A researcher wishes to see if there is a difference between men and women in the number of cases of mental disorders. She selects a sample of 30 males and 26 females and classifies them according to their mental disorder. The results are shown. At α = 0.10, can the researcher conclude that there is a difference in the types of disorders according to gender? Gender Anxiety Depression Schizophrenia Male 8 12 10 Female 12 9 5

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Based on the data below, what is the Cronbach's alpha coefficient? Subject Trial 1 Trial 2 1 5 2 2 3 5 4 3 а. 60 O b. 53 O C. 49 O d.44 326 53