HP 20b Consultant Financial, 30b Professional 2 Statistics Example Months and Sales Values

Statistics Example

Sales for the last five months are represented by the pairs of values shown below, with the month number as x, and the sales values as y. Enter these into the Data menu. Using the Statistics menu for Predictions, predict sales for month seven. What is the linear regression line? What is the sum of all the y values? See Table 12-2 and Table 12-3.

Table 12-2 Statistics Example Months and Sales Values

Month	Sales Values
1	150
2	165
3	160
4	175
5	170

72 Statistical Operations