BUS 308 HELPS Active Participation / bus308helps.com

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BUS 308 HELPS Active Participation /
bus308helps.com
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BUS 308 HELPS Active Participation
BUS 308 Entire Course (New) FOR MORE CLASSES
VISIT www.bus308helps.com   BUS 308 Week 1 DQ 1
Language BUS 308 Week 1 DQ 2 Probability BUS
308 Week 1 Quiz
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BUS 308 HELPS Active Participation
BUS 308 Week 1 DQ 1 Language FOR MORE CLASSES
VISIT www.bus308helps.com     Discussion
1-1/Language Numbers and measurements are the
language of business. Organizations look at
results in many ways expenses, quality levels,
efficiencies, time, costs, etc. What measures
does your department keep track of? Are they
descriptive or inferential data, and what is the
difference between these?
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BUS 308 HELPS Active Participation
BUS 308 Week 1 DQ 2 Probability FOR MORE
CLASSES VISIT www.bus308helps.com   Things vary
in life virtually nothing (except physical
standards such as the speed of light) we interact
with is constant over time. Much of this
variation follows somewhat predictable patterns
that can be examined using
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BUS 308 HELPS Active Participation
BUS 308 Week 1 Problem Set FOR MORE CLASSES
VISIT www.bus308helps.com   For assistance with
these calculations, see the Recommended Resources
for Week One. Measurement issues. Data, even
numerically code variables, can be one of 4
levels nominal, ordinal, interval, or ratio. It
is important to identify which level a variable
is, as this impacts the kind of analysis we can
do with
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BUS 308 HELPS Active Participation
BUS 308 Week 1 Quiz (New) FOR MORE CLASSES
VISIT www.bus308helps.com   Question In
statistical notation, M is to µ as s is to s.
Question 2. Question A parameter refers to a
sample characteristic. Question 3. Question
Data on the city from which members of a board of
directors come represent interval data. Question
4. Question In a frequency distribution such as
a bell-shaped
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BUS 308 HELPS Active Participation
BUS 308 Week 1 Quiz FOR MORE CLASSES
VISIT www.bus308helps.com   1. Question
Data on the city from which members of a
board of directors come represent interval data.
2. Question Inferential statistics
infer the characteristics of samples. 3.
Question The mode is which of the
following?
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BUS 308 HELPS Active Participation
BUS 308 Week 2 DQ 1 Hypotheses FOR MORE CLASSES
VISIT www.bus308helps.com   Discussion
2-1/Hypotheses What is a hypothesis test? Why do
we need to use them to make decisions about
relating sample results to the population why
cant we just make our decisions by the sample
value?
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BUS 308 HELPS Active Participation
BUS 308 Week 2 DQ 2 Variation FOR MORE CLASSES
VISIT www.bus308helps.com   Variation exists in
virtually all parts of our lives. We often see
variation in results in what we spend (utility
costs each month, food costs, business supplies,
etc.). Consider the measures and data you use (in
either your personal or job activities). When are
differences (between one time period and another,
between different
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BUS 308 HELPS Active Participation
BUS 308 Week 2 Problem Set FOR MORE CLASSES
VISIT www.bus308helps.com   Problem Set Week Two
Complete the problems below and submit your work
in an Excel document. Be sure to show all of your
work and clearly label all calculations. All
statistical calculations will use the Included in
the Week Two tab of theEmployee Salary Data Set
are 2 one-sample t-tests comparing male and
female average
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BUS 308 HELPS Active Participation
BUS 308 Week 2 Quiz (New) FOR MORE CLASSES
VISIT www.bus308helps.com   Question What is
the relationship between the power of a
statistical test and decision errors? Question 2.
Question The desired sample depends on all of
these factors except? Question 3. Question What
question does the z test answer? Question 4.
Question The desired sample size depends only
the size of
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BUS 308 HELPS Active Participation
BUS 308 Week 2 Quiz FOR MORE CLASSES
VISIT www.bus308helps.com   1. Question
How is the sum of squares unlike either the
standard deviation or the variance? 2.
Question If sums of squares statistics
are calculated for shoppers at three different
retail outlets, what statistic will indicate the
variability among those at each outlet?
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BUS 308 HELPS Active Participation
BUS 308 Week 3 DQ 1 ANOVA FOR MORE CLASSES
VISIT www.bus308helps.com   In many ways,
comparing multiple sample means is simply an
extension of what we covered last week. Just as
we had 3 versions of the t-test (1 sample, 2
sample (with and without equal variance), and
paired we have several versions of ANOVA
single factor, factorial (called 2-factor with
replication in Excel), and within-
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BUS 308 HELPS Active Participation
BUS 308 Week 3 DQ 2 Effect Size FOR MORE
CLASSES VISIT www.bus308helps.com   Several
statistical tests have a way to measure effect
size. What is this, and when might you want to
use it in looking at results from these tests on
job related data?
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BUS 308 HELPS Active Participation
BUS 308 Week 3 Problem Set FOR MORE CLASSES
VISIT www.bus308helps.com   ASSIGNMENT WEEK 3
Complete the problems below and submit your work
in an Excel document. Be sure to show all of your
work and clearly label all calculations. All
statistical calculations will use the (Note
Questions 1- 4 have additional elements to
respond to below the analysis results.) 1. Last
week, we found that
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BUS 308 HELPS Active Participation
BUS 308 Week 4 DQ 1 Confidence Intervals FOR
MORE CLASSES VISIT www.bus308helps.com   Discussio
n 4-1/Confidence Intervals Many people do not
like or trust single point estimates for
things they need measured. Looking back at the
data examples you have provided in the previous
discussion questions on this issue, how might
adding confidence intervals help managers accept
the results better? Why? Ask a manger
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BUS 308 HELPS Active Participation
BUS 308 Week 4 DQ 2 Chi-Square Tests FOR MORE
CLASSES VISIT www.bus308helps.com   Discussion
4-2/Chi-Square Tests Chi-square tests are great
to show if distributions differ or if two
variables interact in producing outcomes. What
are some examples of variables that you might
want to check using the chi-square tests? What
would these results tell you?
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BUS 308 HELPS Active Participation
BUS 308 Week 4 Problem Set FOR MORE CLASSES
VISIT www.bus308helps.com   ASSIGNMENT WEEK 4
Lets look at some other factors that might
influence pay. Complete the problems below and
submit your work in an Excel document. Be sure to
show all of your work and clearly label all
calculations. All statistical calculations will
use the 1. Using our sample data, construct a 95
confidence
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BUS 308 HELPS Active Participation
BUS 308 Week 4 Quiz (New) FOR MORE CLASSES
VISIT www.bus308helps.com   Question The
goodness of fit test null hypothesis states that
the sample data does not match an expected
distribution. Question 2. Question Statistical
significance in the Chi-square test means the
population distribution (expected) is not the
source of the sampl
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BUS 308 HELPS Active Participation
BUS 308 Week 4 Quiz FOR MORE CLASSES
VISIT www.bus308helps.com   1. Question
With reference to problem 1, what statistic
determines the correlation of experience with
productivity, controlling for age in experience?
2. Question In a problem where
interest rates and growth of the economy are used
to predict consumer spending, which of the
following will increase prediction error? 3.
Question With reference to problem 3,
how is the regression constant or the a value
interpreted?
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BUS 308 HELPS Active Participation
BUS 308 Week 5 DQ 1 Correlation FOR MORE
CLASSES VISIT www.bus308helps.com   Discussion
5-1/Correlation What results in your departments
seem to be correlated or related to other
activities? How could you verify this? Create a
null and alternate hypothesis for one of these
issues. What are the managerial implications of a
correlation between these variables?
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BUS 308 HELPS Active Participation
BUS 308 Week 5 DQ 2 Regression FOR MORE CLASSES
VISIT www.bus308helps.com   Discussion
5-2/Regression At times we can generate a
regression equation to explain outcomes. For
example, an employees salary can often be
explained by their pay grade, appraisal rating,
education level, etc. What
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BUS 308 HELPS Active Participation
BUS 308 Week 5 Final Paper (2 Papers) FOR MORE
CLASSES VISIT www.bus308helps.com   This tutorial
contains 2 Different Papers The final paper
provides you with an opportunity to integrate and
reflect on what you have learned during the
class. The question to address is What have you
learned about statistics? In developing your
responses, consider at a minimum and discuss
the application of each of the
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BUS 308 HELPS Active Participation
BUS 308 Week 5 Problem Set FOR MORE CLASSES
VISIT www.bus308helps.com   ASSIGNMENT WEEK 5 1.
Create a correlation table for the variables in
our (Use analysis ToolPak or StatPlusmac LE
function Correlation). a. Reviewing the data
levels from week 1, what variables can be used in
a Pearsons Correlation Table (which is what
Excel produces)? b. Place the table here. c.
Using r
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BUS 308 HELPS Active Participation /
bus308helps.com
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