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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2.
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)
The director of student services at Oxnard College is interested in whether women are just as likely to attend orientation as men before they begin their coursework. A random sample of freshmen at Oxnard College were asked what their gender is and whether they attended orientation. The results of the survey are shown below: Data for Gender vs. Orientation Attendance Women Men Yes 334 367 No 266 370 What can be concluded at the αα = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean t-test for the difference between two dependent population means t-test for the difference between two independent population means z-test for a population proportion z-test for the difference between two population proportions The test statistic ? z = (please show your answer to 3 decimal places.) The p-value = t (Please show your answer to 4 decimal places.) Using a TI-84 cal
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 paragraph below is the study questions 16-21 d The Board of Transportation and Safety (BTS) wants to examine the safety mechanisms of A, B, and C-class cars. Samples of 7 cars for each of the classes were used. The board members collect the pressure exerted overall on the driver's body during a crash impact test. The BTS wants to see if there if a difference among the 3 classes of cars. Assume alpha of 0.05. What type of statistical test would be appropriate? O Pearson correlation O Multiple linear regression O one-way independent ANOVA O two-way independent ANOVA O simple linear regression QUESTION 17 Which of the following is the correct alternative hypothesis? O at least 2 of the means are different O all of the pairs of means are different O u1 = p2 = p3
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
Which of the following tables can be used as a more exact substitute for the empirical rule? t table chi squared table O F table O z table
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): ___________________
B1

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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