In the standard regression equation y = a + bx, how is the letter b best described?
Answer(s): D
In the standard regression equation, b represents the variable coefficient. For example, in a cost determination regression, equals total costs, b is the variable cost per unit, is the number of units produced, and a is fixed cost. In preparing the annual profit plan for the coming year, Wilkens Company wants to determine the cost behavior pattern of the maintenance costs.Wilkens has decided to use linear regression by employing the equation = a + bx for maintenance costs. The prior year's data regarding maintenance hours and costs, and the results of the regression analysis, are given below and in the opposite column.
How is the letter x in the standard regression equation best described?
Answer(s): A
The letters x in the standard regression equation is the independent variable. For example, in a regression to determine the total cost of production, equal units produced. In preparing the annual profit plan for the coming year, Wilkens Company wants to determine the cost behavior pattern of the maintenance costs. Wilkens has decided to use linear regression by employing the equation = a + bx for maintenance costs. The prior year's data regarding maintenance hours and costs, and the results of the regression analysis, are given below and in the opposite column.
Based upon the data derived from the regression analysis, 420 maintenance hours in a month would mean the maintenance costs rounded to the nearest U dollar) would be budgeted at
Substituting the given data into the regression equation results in a budgeted cost o US $3,746 rounded to the nearest US dollar).y = a + bx y = 684.65 + 7.2884 420y = us $3,746
What is the percentage of the total variance that can be explained by the regression?
The coefficient of determination r) measures the percentage of the total variance in cost that can be explained by the regression equation. If the coefficient of determination is .99724, 99.724% of the variance is explained by the regression equation. Thus, the values in the regression equation explain virtually the entire amount of total cost.
An internal auditor for a large automotive parts retailer wishes to perform a risk analysis and wants to use an appropriate statistical tool to help identify stores that would be out of line compared to the majority of stores. The most appropriate statistical tool to use is
Answer(s): B
Time series data pertain to a given entity over a number of prior time periods. Cross sectional data, however, pertain to different entities for a given time period or at a given time.Thus, cross-sectional regression analysis is the most appropriate statistical tool because it compares attributes of all stores' operating statistics at one moment in time.
Share your comments for IIA IIA-CIA-Part3 exam with other users:
very helpful
good info about oml
very useful to practice
this website is very helpful.
good content
so challenging
17 should be d ,for morequery its scale out
nice question
yes.
good mateial
good practice exam
impressivre qustion
questions seem helpful
question 21 answer is alerts
am preparing for exam
good one thanks
only got thru 5 questions, need more to evaluate
q26 should be b
the aaa triad in information security is authentication, accounting and authorisation so the answer should be d 1, 3 and 5.
need to attend this
these are free brain dumps i understand, how can one get free pdf
provide access
good morning
please upload the ncp-mci 6.5 dumps, really need to practice this one. thanks guys
question 16: https://help.salesforce.com/s/articleview?id=sf.care_console_overview.htm&type=5
yes i m prepared exam
my experience was great with this site as i studied for the ms-900 from here and got 900/1000 on the test. my main focus was on the tutorials which were provided and practice questions. thanks!
great course
very good question
question: 93 which statement is true regarding the result? sales contain 6 columns and values contain 7 columns so c is not right answer.
highly recommend just passed my exam.
great practice! thanks
anyone who wrote this exam recently?