The marketing team at an internet music site wants a better understanding of who their customers...
|
The marketing team at an internet music site wants a better understanding of who their customers are. They send out a survey to 25 customers (and use an incentive of $50 worth of downloads to guarantee a high response rate) asking for demographic information. One of the variables is the customer's age. For the 25 customers, the ages are shown to the right. Complete parts a) through d). |
19 |
32 |
34 |
28 |
32 |
|
|
32 |
31 |
14 |
29 |
11 |
||
|
37 |
23 |
43 |
48 |
25 |
||
|
26 |
23 |
32 |
36 |
33 |
||
|
36 |
42 |
42 |
43 |
48 |
a) Find the quartiles using technology.
Q1=26 and Q3=37
b) Find the quartiles using the Tukey method.
Q1=26 and Q3=37
c) Find the IQR using the quartiles from part b.
IQR=11
d) Find the standard deviation.
The standard deviation is ????
(Round to three decimal places as needed.)
Homework Answers
The statistic software output for this problem is:
Summary statistics:
| Column | Std. dev. |
|---|---|
| Data | 9.6241017 |
The standard deviation is : 9.624
Add Answer to:
The marketing team at an internet music site wants a better
understanding of who their customers...
Question Help The marketing team at an internet music site wants a better understanding of who...
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