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MGT 3310 Homework 1 Summer I 2022
Chapter 1-7 Part A
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Order Paper Now1. According to an annual consumer spending survey, the average monthly Bank of American Visa credit card charge was $1838 (U. S. Airways Attach Magazine, December 2003). A sample of monthly credit card charges provides the following data.
236 1710 1351 825 7450 316 4135 1333
1584 387 991 3396 170 1428 1688
a. Compute the sample mean and the median.
b. Compute the first and third quartiles.
c. Compute the range and interquartile range.
2. Consider a sample with data values of 57, 45, 50, 39, 50, 59, 60, and 48.
Compute the following values.
a. Mode.
b. 40th percentile.
c. Variance.
d. Standard deviation.
e. Coefficient of variation.
3. Five observations taken for two variables follow.
|
x |
y |
|
4 |
50 |
|
6 |
50 |
|
11 |
40 |
|
3 |
60 |
|
16 |
30 |
a. Compute and interpret the sample covariance.
b. Compute and interpret the sample correlation coefficient.
Note: Homework solution must be submitted electronically to Homework 1 folder in “Assignments” on D2L.
It is your choice to submit all of your work or just the final answer only. If you only submit the final answer and the answer is wrong, you will lose all the points assigned to that question. If you also show the steps how you get that answer, you still can earn partial credit as long as the steps are not completely wrong.
