The accompanying table summarizes successes and failures when subjects used different methods when trying to stop smoking. The d
etermination of smoking or not smoking was made five months after the treatment was begun. If we test the claim that success is independent of the method used, the technology provides a P-value of 0.019 (rounded). What does the P-value tell us about that claim? Click the icon to view the stop smoking data.
Cents portion of check Number
0–24 34
25–49 21
50–74 22
75–99 23
The test statistic is [__]
The critical value is [__]
The P-value is [__]
State the conclusion.
* Do not reject
* Reject
Upper H 0. There
* is not
* is
sufficient evidence to warrant rejection of the claim that the four categories are equally likely. The results
* do not appear
* appear
to support the expectation that the frequency for the first category is disproportionately high.
Because the P-value of 0.19 small(such as 0.05 or lower), accept the null hypothesis of independence between the treatment and whether the subject stops smoking. This suggests that the choice of treatment is insignificant.
P-value>0.05 , we accept the null hypothesis. When the P-value is greater than 0.05 , the test is insignificant.
This means that the choice of treatment is insignificant.
