A researcher wishes to see if the five ways people use to co
A researcher wishes to see if the five ways people use to combat midday drowsiness are equally distributed among office workers. A sample of sixty office workers is selected. At a =0.10 can it be concluded that there is no preference? Use the chart below and a graphing calculator
Beverage Nap Walk Snack Other
17 10 16 9 8
Solution
The test hypothesis:
Null hypothesis: there is no preference
Alternative hypothesis: there is a preference
| observed | expected | O - E | (O - E) |
