Grand Canyon BUS 352 All Weeks Discussion Questions

Grand Canyon BUS 352 All Weeks Discussion QuestionsTo get this tutorial follow this link:http://dodohelp.com/BUS-352/Grand-Canyon-BUS-352-All-Weeks-DQsContact us at:[email protected] Canyon BUS 352 MOD 1 DQ 1The media often attempts to predict the outcome of national elections. Why are they often wrong? Based on the conceptspresented in this module’s readings, how could the system be improved?Grand Canyon BUS 352 MOD 1 DQ 2In conducting a survey, what do you think is even more important than the size of the sample? Why?Grand Canyon BUS 352 MOD 2 DQ 1Referring to Chapter 2 Excel Guide, EG2, Section EG2.5 in the text, create a histogram on some sample data using MicrosoftExcel. Post your file to the Discussion Forum in response to this DQ. What are some specific challenges related to creating ahistogram in Microsoft Excel?Grand Canyon BUS 352 MOD 2 DQ 2What ethical issues should you consider when creating a graph of data?Grand Canyon BUS 352 MOD 3 DQ 1Assume the financing gurus of a weekend investment television program predicted a 50% chance of XYZ stock gaining inJanuary and a 50% chance of gaining in February. Your financial advisor sees this and tells you there is a 100% chance XYZstock will gain over the 2-month period. Would you continue to use this financial advisor? Explain.Grand Canyon BUS 352 MOD 3 DQ 2Marie claims she can predict the sex of pregnant women’s babies. She sees 1,000 women a year, and she always predicts afemale. She charges $1,000 for a prediction, and she always predicts a female (although clients do not know that). When she iswrong, she offers a double-your-money back guarantee. Since the chance of having a female is approximately 50%, how can sheearn any money?Grand Canyon BUS 352 MOD 4 DQ 1Provide some examples of discrete and continuous variables. What attributes of these variables make them discrete andcontinuous? Why?Grand Canyon BUS 352 MOD 4 DQ 2Describe the term mutually exclusive. Provide some examples. Must the values of x in a discrete probability distribution alwaysbe mutually exclusive? Why or why not? Provide an example.Grand Canyon BUS 352 MOD 5 DQ 1You just saw an ad on television that states the majority of the population would vote to make smoking illegal. The poll that isreferenced shows 53% of those asked supported making smoking illegal. In the fine print at the bottom of the screen, you see thatthe margin of error is +/- 3%. What is your reaction? Explain.Grand Canyon BUS 352 MOD 5 DQ 2Many people believe that a larger sample is always better. What do you think? Explain.Grand Canyon BUS 352 MOD 6 DQ 1Your mayor just announced that the local unemployment rate dropped last month from the prior month. It went from 10.5% to10.4%. Is this a significant drop? Explain.Grand Canyon BUS 352 MOD 6 DQ 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 youbelieve a Type II Error is more serious. In each case, why do you think so?Grand Canyon BUS 352 MOD 7 DQ 1Describe 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?Grand Canyon BUS 352 MOD 7 DQ 2Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in twopopulation means. The sample sizes for each are 23. He is adamant that you perform a z-test. What would you tell him? Whatspecific explanation would you give?Grand Canyon BUS 352 MOD 8 DQ 1A market researcher is interested in knowing the type of training that works best for DVD users. Thirty consumers are randomlyselected from a population of known DVD owners (i.e., users). Ten users are trained by giving them the DVD user’s manual andallowing them to read it. Another 10 users are trained from a 30 minute DVD user training video. Another 10 users are trainedfrom a self-paced computer tutorial. The users are then timed in their ability to setup and program the DVD by performing aseries of operations. Which statistical analysis technique should be used? What is the null hypothesis? Can the market researcherget an answer? Why or why not?Grand Canyon BUS 352 MOD 8 DQ 2A client gives you a data set of 30 observed values that represent the number of gallons of gas that 30 individual Nissan Sentraowners purchased at the gas pump last month. Your client wants to know if the data set represents a normal distribution. Whichstatistical analysis technique should be used? What is the null hypothesis? Can an analysis be performed? Why or why not?