QUESTION 3The data was obtained in a study on the number of absences in the day and the final gradesof seven randomly selected students from a statistics class. The data and output of IBM-SPSSsoftware are shown below.Model1StudentABCDEFGAbsencesGrade(Constant)AbsencesNumber of absences621591258Pearson CorrelationSig. (2-tailed)NPearson CorrelationSig. (2-tailed)N**. Correlation is significant at the 0.01 level (2-tailed).c) Compute the value of X.Unstandardized CoefficientsB102.493XAbsencesStd. Error5.138565Final grade8286437458907817-.944**0017GradeStandardizedCoefficientsBeta-.944**.001t71719.948-.944 -6.411Sig..000.001Answer all questions below based on the data and output of the IBM-SPSS software above.a) State the predictor and response variable for this study.b) Validate that the Pearson correlation coefficient value is -0.944. Hence, comment on thevalue.

a) In the given situation, the final grades of the students are estimated based on the number of…

Answered: The data was obtained in a study on 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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A group of students were asked how many times they exercised in the past week. The results were: 0,0,0,0,0,1,1,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,4,5,6,7,7,7. a. Construct a histogram summarizing the data. Use [0,2), [2,4), etc. as the bins b. Describe the shape and the modality of the histogram.
Full data set 3. The data to the right represent the number of chocolate chips per cookie in a random sample of a name brand and a store brand. Complete parts (a) to (c) below. Name Brand Store Brand 22 29 24 22 28 23 25 22 17 28 24 35 32 28 33 27 23 31 26 28 15 24 23 21 (a) Draw side-by-side boxplots for each brand of cookie. Label the boxplots "N" for the name brand and "S" for the store brand. Choose the correct answer below. O A. OB. OC. N- S- 30 40 40 (b) Does there appear to be a difference in the number of chips per cookie? O A. Yes. The store brand appears to have more chips per cookie. O B. Yes. The name brand appears to have more chips per cookie. O C. No. There appears to be no difference in the number of chips per cookie. O D. There is insufficient information to draw a conclusion. (c) Does one brand have a more consistent number of chips per cookie? O A. Yes. The store brand has a more consistent number of chips per cookie. B. No. Both brands have roughly the same number…

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The data was obtained in a study on the number of absences in the day and the final of seven randomly selected students from a statistics class. The data and output of IBM software are shown below. Student A B Number of absences 6 2 Final grade 82 86