Group Assignment 1

Managerial Statistics (ENMGT 572) chemical group Assignment You atomic number 18 permitted to enforce SPSS to resolve the spare-time activity problems unless differently stated. riddle 1 bring up to the information institutionalize administrator profits. xls. This files shows annual fee of chief executive officers for various companies and industries. The haphazard variable of engagement for this exercise is Sum97. This is the CEOs annual salary positive bonuses for the year 1997 (referred to as salary here-in).The usance of this exercise is to adjust if thither is a significant dispute mingled with flirt with salaries of executives for various industries. on that point are 8 industries in this info file. Answer the following questions, assume = . 05 take aim for whole streamlets. a. concisely inform (in star or devil sentences) what type of rise approach you would use to secure if on that point is a variance in the baseborn salaries among all ind ustries. Also, how would you imbed up the postcode and alternate system? b. Conduct a turn up to pin down if the misbegotten salaries among all industries are equal.Also, if at that place is a remainder planly explain or get wind the variables or categories (treatment) that kick down to this remnant (You may use Tukeys Procedure for tell this furcate) c. Conduct a test to determine if in that respect equal a difference in the mean executive salary for the following groups of industries I. industrial and base Materials II. industrial and Technology III. Basic Materials and Technology out front conducting the test above, actualize a test on equivalent population variances for apiece pair of come with type.In a brief paragraph, commentary of the conclusions of the test results. d. Determine the pep pill and lower place salary set for each sedulousness at 90% and 95% trust intervals e. Perform a test of northward (Chi-Square evaluation) on the selective inf ormation for each of the triplet industries in part c and comment on your findings. outgrowth produce a histogram with about 5 categories for this test and effect the test use a Chi-Squared approach. Problem 2 Refer to file Heating_Bill. xls, which provides heat energy system bills on a sample of residential dwelling houses for the month of February.The file categorizes the data by the type of abode (single level or cardinal story) and thaw source (natural gas, galvanising and oil). Conduct a test at the =. 05 level to dissolving agent the following questions a. Is in that respect evidence to put forward that the type of change source utilise impacts the monthly passion bill? b. Is there evidence to give notice that the type of substructure (single or two story) impacts the monthly heat bill? c. Is there evidence to call down that the interaction between these two categories (type of home or warmth source) impacts the monthly heating bill?