A business manager in a health-care facility has been investigating the cost of maintaining patients within its plan. A sample of 15 cases (different from those in WQ2) for the last month reported the following:
|
1
|
$1,165.60
|
4
|
$1,054.00
|
7
|
$1,240.00
|
10
|
$1,012.00
|
13
|
$1,091.20
|
|
2
|
$1,401.20
|
5
|
$1,245.00
|
8
|
$1,178.00
|
11
|
$1,324.00
|
14
|
$1,034.00
|
|
3
|
$1,100.00
|
6
|
$1,254.00
|
9
|
$1,234.00
|
12
|
$1,016.80
|
15
|
$1,079.00
|
In its advertising campaigns, the business manager has claimed that the cost of patient care runs about $1,130 per month.
Assuming a level of significance ? =0.05 check the validity of the health care facility's claim
Find the Following: mean, median, standard deviation, validity