An anti-smoking campaign is being evaluated prior to its implementation in higher education institutions in UK. A pilot study involving 10 volunteers who smoke is conducted. Each volunteer reports the number of cigarettes smoked the day before enrolling in the study. Each one is subjected to the anti-smoking campaign, which involves educational material, support groups, formal programs designed to reduce or quit smoking, and so on. After four weeks, each volunteer again reports the number of cigarettes smoked the day before. The following is the data obtained: At enrolment 22 12 8 20 15 25 15 18 16 9 After the campaign 15 10 8 11 12 20 18 15 15 8 REQUIRED: Using a paired t-test at 5% significance level, is the program effective based on this pilot data?
An anti-smoking campaign is being evaluated prior to its implementation in higher education institutions in UK. A pilot study involving 10 volunteers who smoke is conducted. Each volunteer reports the number of cigarettes smoked the day before enrolling in the study. Each one is subjected to the anti-smoking campaign, which involves educational material, support groups, formal programs designed to reduce or quit smoking, and so on. After four weeks, each volunteer again reports the number of cigarettes smoked the day before. The following is the data obtained:
|
At enrolment |
22 |
12 |
8 |
20 |
15 |
25 |
15 |
18 |
16 |
9 |
|
After the campaign |
15 |
10 |
8 |
11 |
12 |
20 |
18 |
15 |
15 |
8 |
REQUIRED:
Using a paired t-test at 5% significance level, is the program effective based on this pilot data?
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