BUS 211

subject Type Homework Help
subject Pages 4
subject Words 580
subject Authors Douglas Lind, Samuel Wathen, William Marchal

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page-pf1
The first three class marks for a frequency distribution of "weights of college men"
recorded to the nearest pound are 105, 115, and 125.
What is the upper limit for the third class?
The center line of a mean chart is labeled as _______.
Using the following regression analysis:
What are the regression degrees of freedom?
page-pf2
_______________ is the technique used to predict or estimate the value of the
dependent variable Y based on a selected value of an independent variable X.
A company studied the commissions paid to furniture salespersons. If the variance is
computed, the unit of measure is _________.
Suppose your annual 2005 salary was $95,000 and your 2010 salary was $125,000.
Assume the annual CPI rose from 177.1 to 215.9 during this period of time. What was
your real income in 2010?
page-pf3
A _______________ random variable can assume only a certain number of separated
values.
A committee that is studying employer-employee relations proposed that each employee
would rate his or her immediate supervisor, and in turn the supervisor would rate each
employee. To test if the reactions to the survey for office and plant personnel were the
same, 120 office personnel and 160 plant personnel were selected at random.
Seventy-eight of the office personnel and 90 of the plant personnel were in favor of the
proposal. To test the hypothesis that the population proportions are equal, what is the
critical value using the 0.05 level of significance?
In a cumulative frequency distribution, the percent of the total frequencies that would
fall below the upper limit of the highest class would be _________.

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