Purchasing agent Angela Rodriguez reported the number of sales calls she received from suppliers on each...

Purchasing agent Angela Rodriguez reported the number of sales calls she received from suppliers on each of the past 14 days. Compute the variance for her daily calls during the 14-day period. Treat the data as a sample.

Calls (x)	Number of days f(x)
4	1
5	3
6	4
7	4
8	2

a. 1.88

b. 1.14

c. 1.67

d. .78

e. 1.31

Solutions

Expert Solution

Angela Rodriguez reported the number of sales calls she received from suppliers on each of the past 14 days. As per question the data should be treated as sample. So, for the following calculations we will take the divisor as (n-1) and values are taken upto 2 decimal numbers as the answers are in upto 2 decimal numbers

the variance for her daily calls during the 14-day period is 1.67 (option c ) approx

milcah answered 9 months ago

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