A manufacturer wants to determine whether the number of defectives produced by its employees tends to increase as the day progresses. Unknown to the employees, a complete inspection is made of every item that was produced on one day, and the hourly fraction defective is recorded. The resulting data are given in the next table. Do they provide evidence that the fraction defective increases as the day progresses?

Test at the a = .05 level.

Hour _______________ Fraction Defective

1 ...................................... .02

2 ....................................... .05

3 ..................................... .03

4 ..................................... .08

5 ...................................... .06

6 ..................................... .09

7 ..................................... .11

8 .................................... .10