A student organization surveyed both current students and recent graduates to obtain information on the quality of teaching at aparticular university. An analysis of the responses provided the following teaching-ability rankings.ProfessorO Ho: Ps+0H₂: Ps=0O Ho: Ps ≤0Ha: P >01Ho: Ps > 0H₂: Ps=02Ho: Ps= 0Ha: Ps * 034567910CurrentStudents46831251079RecentGraduates6851237Do the rankings given by the current students agree with the rankings given by the recent graduates?Compute the rank correlation between current students and recent graduates. (Round your answer to three decimal places.)9Use α = 0.10 and test for a significant rank correlation.State the null and alternative hypotheses.O Ho: P₂ ZOHa: Ps <0104Find the value of the test statistic. (Round your answer to two decimal places.)Find the p-value. (Round your answer to four decimal places.)p-value=What is your conclusion?O Reject Ho. There is not sufficient evidence to conclude that there is a significant rank correlation between current studentsand recent graduates in terms of professor teaching ability.O Reject Ho. There is sufficient evidence to conclude that there is a significant rank correlation between current students andrecent graduates in terms of professor teaching ability.O Do not reject Ho. There is sufficient evidence to conclude that there is a significant rank correlation between currentstudents and recent graduates in terms of professor teaching ability.O Do not reject Ho. There is not sufficient evidence to conclude that there is a significant rank correlation between currentstudents and recent graduates in terms of professor teaching ability.

The data is given as- Professor Current students Recent graduates 1 4 6 2 6 8 3 8 5 4…

Answered: Find the value of the test statistic.…

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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Statistics students believe that the mean score on a first statistics test is 65. The instructor thinks that the mean score is higher. She samples 10 statistics students and obtains the scores: Grades 69 69 63.9 68.4 62.7 73.5 73.5 64.3 Test grades are believed to be normally distributed. Use a significance level of 5%. A. State the alternative hypothesis: HA: Ομ 65 B. State the mean of the sample: C. State the standard error of the sample means: D. State the test statistic: t = E. State the p-value: F. Decision: O Fail to reject the null hypothesis. Reject the null hypothesis. 73.5 96
A teacher is interested to know whether the average number of hours spent by the students in watching educational YouTube videos has a significant relationship with their performance during the final term examination. He surveyed a group of students on his class and tabulated the result. Use 0.05 level of significance. Student Number of Hours (X) Exam Scores (Y) A 4. 36 2 20 21 4 36 E 27 3 25 G 2 19 20 23 J 45 K 6. 49 L 40 M 26 N 2. 40 34 Ex- ТОTAL Y = = What is the linear regression equation?
A teacher is interested to know whether the average number of hours spent by the students in watching educational YouTube videos has a significant relationship with their performance during the final term examination. He surveyed a group of students on his class and tabulated the result. Use 0.05 level of significance. Student Number of Hours (X) Exam Scores (Y) A 4 36 B 2 20 3 21 D 4. 36 E 27 3 25 2 19 H 1 20 5 23 J 4. 45 K 49 40 M 5 26 N 2 40 3 34 ТOTAL X = = What is the value of the slope?
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Suppose a certain retailer sells several models of refrigerators. A random sample of the models sold by this retailer and their corresponding cubic feet (cu. ft.) and list price can be found below. Model Model 1 Model 2 Model 3 with Thru-the-Door Ice and Water Model 4 Model 5 Model 6 with Thru-the-Door Ice and Water Model 7 Model 8 Model 9 with Thru-the-Door Ice and Water Model 10 with Thru-the-Door Ice and Water Model 11 with Thru-the-Door Ice and Water Model 12 Model 13 with Thru-the-Door Ice and Water Model 14 Model 15 Cu.Ft. List Price 18.3 24.8 25.4 19.3 17.3 19.6 25.0 24.5 18.0 $899.99 25.0 $1,799.99 20.2 $1,799.99 15.5 $749.99 $599.99 25.4 $1,299.99 $1,619.99 26.0 $1,299.99 $999.99 25.6 $1,099.99 $1,299.99 $679.99 $2,199.99 $849.99 $549.99 Model 16 with Thru-the-Door Ice and Water Model 17 Model 18 with Thru-the-Door Ice and Water Model 19 with Thru-the-Door Ice and Water Model 20 with Thru-the-Door Ice and Water Model 21 ⒸHO: B₁ ≤0 H₂: A₂ > 0 28.2 ⒸH₁: B₁₂ = 0 Ha! B₁ #0 27.8…
10th XX= 33

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