BA/215 WEEK 3 DQ AND ASSIGNMENT - 40807

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Discussion "Deceptive Statistics"

There are examples of deceptive statistics everywhere - visual data presentations (charts/graphs)—from magazines to newspaper articles. Locate a particularly outrageous chart/graph and interview people in your company about the message they interpret from this example. Ask them the purpose of the statistics/research--chart/graph, the strengths and weaknesses of the chart/graph and if are they convinced or suspicious of its findings. What would they recommend to make the results more credible (if anything). Make an audio or video clip of your interview and upload it to this cite. Be sure to include a picture of the graph in the discussion forum.

 

 

 

 

 

Question 1

 

1. If you could stop time and live forever in good health, what age would you pick? Answers to this question were reported in a USA Today Snapshot. The average ideal age for each age group is listed in the following table; the average ideal age for all adults was found to be 41. Interestingly, those younger than 30 years want to be older, whereas those older than 30 years want to be younger.

 

Age Group

Ideal Age

18 - 24

27

25 - 29

31

30 - 39

37

40 - 49

40

50 - 64

44

65 +

59

 

 

Age is used as a variable twice in this application.

 

a. The age of the person being interviewed is not the random variable in this situation. Explain why and describe how “age” is used with regard to age group.

 

b. What is the random variable involved in this study? Descrie its role in this situation.

 

c. Is the random variable discrete or continuous?

 

Question 2

 

2. Find the area under the normal curve that lies ot the left of the following z-balues.

 

a. Z=-1.30

 

b. Z=-3.20

 

c. Z=-2.56

 

d. Z=-0.64

 

 

 

Solution Description

The d

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