In: Statistics and Probability
A small group of participants are asked how often they meditate. Then they are given a lecture on the benefits of meditation. Following the lecture they are again asked how often they meditate.
Did the lecture increase the number of days they meditate?
What is the t observed?
What is the appropriate decision?(You'll use this problem in the next question.)
# Days Meditate Before Lecture | # Days Meditate After Lecture |
29 | 19 |
31 | 33 |
27 | 23 |
22 | 24 |
32 | 20 |
How has attendance in a college class been affected by the change to distance education? Weekly absences of 2 separate, independent classes, one affected by distance ed and one not affected, were compared.
Here are the descriptive stats:
No Distance Ed | Distance Ed |
mean = 2 |
mean = 3 |
sd = .86 | sd = .79 |
The t observed for this independent t test is 3.82.
Conduct all 5 steps of the hypothesis test, except for step 3 which has been given to you above.
Label each step:
1. state hypotheses (sentences and statistical notation)
2. set decision criteria (alpha, # tails, df, c.v.)
3. see above
4. make decision (reject or fail)
5. write up results (test and why, general result, evidence, direction of result)
*Note: 1 point for each item listed in parentheses.
For problem two sample size is not given that's why I provide you only outline how to make decision. Give thumb up. Thank you