8) A company manager wishes to test a union leader's claim that absences occur on thedifferent week days with the same frequencies. Test this claim at the 0.05 level ofsignificance if the following sample data have been compiled.ayAbsencesMon Tue Wed Thur Fri151223 43

Hypothesis Ho: week days with same frequency H1: week days are not uniformly distributed.

Answered: 8) A company manager wishes to test a…

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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SJS Travel Agency, a nation wide local travel agency, offers special rates on summer period. The owner wants additional information on the ages of those people taking travel tours. A random sample of 50 customers taking travel tours last summer revealed these ages. 18 29 37 42 47 49 53 57 61 67 19 31 38 44 48 50 54 58 62 68 24 34 39 45 48 51 54 58 63 70 27 36 39 46 48 51 55 59 64 74 28 36 40 46 49 52 56 60 66 77 C. Determine the D1, D2, D3, D4 of the frequency distribution and construct the graph.
The following table shows the ethnic origins of two random samples of students from a Canadian university, one from 2012 and the other from 2022: European 2012 2022 African Asian 308 58 52 364 100 58 Note: Canadian born students are classified according to their ancestry. (a) What would be an appropriate test to check if there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022? Justify your answer. ] Other 22 38 (b) Based on your answer in (a) above, test whether there has been an overall change in the distribution of ethnic origins among the student population of that university between 2012 and 2022. Use a 5% significance level and show your detailed manual calculations and all the steps of your hypothesis test (hypotheses, significance level, expected cell frequencies (rounded to 1 decimal), test statistic, decision criteria, critical value and p-value, conclusion with justification). (Manual…
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12) The Human Resource department of Lala firm has summarized the number of service years of their 120 employees as below. Number of Service years employees 16 1-4 5-8 20 9-12 28 13-16 24 17-20 16 21-24 11 25-28 a) Calculate the mean and variance for the service years. b) Draw an ogive to represent the data above. Hence, estimate the median value for the above distribution.

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8) A company manager wishes to test a union leader's claim that absences occur on the different week days with the same frequencies. Test this claim at the 0.05 level of significance if the following sample data have been compiled. Day Absences Mon Tue Wed Thur Fri 37 15 12 23 43