![subject](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 16:57 ruchiamin2633
A market research firm used a sample of individuals to rate the purchase potential of a particular product before and after the individuals saw a new television commercial about the product. The purchase potential ratings were based on a 0 to 10 scale, with higher values indicating a higher purchase potential. The null hypothesis stated that the mean rating "after" would be less than or equal to the mean rating "before." Rejection of this hypothesis would show that the commercial improved the mean purchase potential rating. Use = .05 and the following data to test the hypothesis and comment on the value of the commercial.
Purchase Rating Purchase Rating
Individual After Before Individual After Before
1 6 5 5 3 5
2 6 4 6 9 8
3 7 7 7 7 5
4 4 3 8 6 6
A. What are the hypotheses?
B. Compute ?? d (to 3 decimals).
Compute sd (to 1 decimal).
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:40
What signals you that factoring by grouping is the best method to use when factoring a problem?
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00
Evaluate the expression for the given value of the variable 7a - 4a for a =8
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:10
Empty box + box + empty box fill in the box is equal to 30 how
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
Which of the following scenarios demonstrates an exponential decay
Answers: 1
You know the right answer?
A market research firm used a sample of individuals to rate the purchase potential of a particular p...
Questions
![question](/tpl/images/cats/health.png)
Health, 05.06.2020 21:59
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.06.2020 21:59
![question](/tpl/images/cats/fizika.png)
Physics, 05.06.2020 21:59
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.06.2020 21:59
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.06.2020 21:59
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.06.2020 21:59
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 05.06.2020 21:59
![question](/tpl/images/cats/mat.png)