SYM
506 Entire Course-GC
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SYM 506 Entire Course-GC
SYM506
SYM 506 Grand Canyon Week 1 Discussion 1
The media often attempts to predict the outcome of national
elections. Why are they often wrong? Based on the concepts presented in this
module’s readings, how could the system be improved?
SYM 506 Grand Canyon Week 1 Discussion 2
In conducting a survey, what do you think is even more important
than the size of the sample? Why?
SYM 506 Grand Canyon Week 2 Discussion 1
Referring to Chapter 2 Excel Guide, EG2, Section EG2.5 in the
textbook, create a histogram on some sample data using Microsoft Excel. Post
your file in response to this DQ. What are some specific challenges related to
creating a histogram in Microsoft Excel?
SYM 506 Grand Canyon Week 2 Discussion 2
What ethical issues should you consider when creating a graph of
data?
SYM 506 Grand Canyon Week 3 Discussion 1
Assume the financing gurus of a weekend investment television
program predicted a 50% chance of XYZ stock gaining in January and a 50% chance
of gaining in February. Your financial advisor sees this and tells you there is
a 100% chance XYZ stock will gain over the 2-month period. Would you continue
to use this financial advisor? Explain.
SYM 506 Grand Canyon Week 3 Discussion 2
Marie claims she can predict the sex of pregnant women’s babies.
She sees 1,000 women a year, and she always predicts a female. She charges
$1,000 for a prediction, and she always predicts a female (although clients do
not know that). When she is wrong, she offers a double-your-money back
guarantee. Since the chance of having a female is approximately 50%, how can
she earn any money?
SYM 506 Grand Canyon Week 4 Discussion 1
Provide some examples of discrete and continuous variables. What
attributes of these variables make them discrete and continuous? Why?
SYM 506 Grand Canyon Week 4 Discussion 2
Describe the term mutually exclusive. Provide some examples. Must
the values of x in a discrete probability distribution always be mutually
exclusive? Why or why not? Provide an example.
SYM 506 Grand Canyon Week 5 Discussion 1
You just saw an ad on television that states the majority of the
population would vote to make smoking illegal. The poll that is referenced
shows 53% of those asked supported making smoking illegal. In the fine print at
the bottom of the screen, you see that the margin of error is +/- 3%. What is
your reaction? Explain.
SYM 506 Grand Canyon Week 5 Discussion 2
Many people believe that a larger sample is always better. What do
you think? Explain.
SYM 506 Grand Canyon Week 6 Discussion 1
Your mayor just announced that the local unemployment rate dropped
last month from the prior month. It went from 10.5% to 10.4%. Is this a
significant drop? Explain.
SYM 506 Grand Canyon Week 6 Discussion 2
Give an example of a situation in which you believe a Type I Error
is more serious. Give an example of a situation in which you believe a Type II
Error is more serious. In each case, why do you think so?
SYM 506 Grand Canyon Week 7 Discussion 1
Describe when a z-test should be performed as opposed to a t-test?
Which (if any) can we use all the time? Why or why not?
SYM 506 Grand Canyon Week 7 Discussion 2
Your manager, who just read an abridged version of a statistics
book, wants you to test hypotheses for the difference in two population means.
The sample sizes for each are 23.
SYM 506 Grand Canyon Week 8 Discussion 1
A market researcher is interested in knowing the type of training
that works best for DVD users. Thirty consumers are randomly selected from a
population of known DVD owners (i.e., users). Ten users are trained by giving
them the DVD user’s manual and allowing them to read it. Another ten users are
trained from a 30 minute DVD user training video. Another ten users are trained
from a self-paced computer tutorial. The users are then timed in their ability
to setup and program the DVD by performing a series of operations. Which
statistical analysis technique should be used? What is the null hypothesis? Can
the market researcher get an answer? Why or why not?
SYM 506 Grand Canyon Week 8 Discussion 2
A client gives you a data set of 30 observed values that represent
the number of gallons of gas that 30 individual Nissan Sentra owners purchased
at the gas pump last month. Your client wants to know if the data set
represents a normal distribution. Which statistical analysis technique should
be used? What is the null hypothesis? Can an analysis be performed? Why or why
not?
SYM 506 Grand canyon Week 1 Assignment Problem Set 1
Details:
Complete exercises 1.5, 1.7, 1.13, 1.20, and 1.27 in the textbook.
Submit in one Word file.
You are not required to submit this assignment to Turnitin, unless
otherwise directed by your instructor. If so directed, refer to the Student
Success Center for directions. Only Word documents can be submitted to
Turnitin.
SYM 506 Grand canyon Week 2 Assignment Problem Set 2
Details:
Complete exercises 2 .7, 2 .17, 2 .19 (refer to Appendix E2 for
instructions on using Excel), 2 .21, 2 .50, and 2 .51 in the textbook.
You will need:
1. For 2 .17, refer to the “BB Cost” file.
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