2. A large group of teenagers is divided into two smaller groups of 125 each, an

Question

2. A large group of teenagers is divided into two smaller groups of 125 each, and each group watches a different movie. One group watches a love story while the other group watches a movie containing several scenes with violence. The teenagers are then asked questions to uncover unconscious associations and determine their level of aggression.
I. What is the population?
II. What is the sample?
III. Is the study observational or experimental? Justify your answer.
IV. What are the variables?
V. For each of those variables, what level of measurement (nominal, ordinal, interval, or ratio) was used to obtain data from these variables?

12. Answer the following:
(A) Find the binomial probability P(x = 4), where n = 12 and p = 0.40.
(B) Set up, without solving, the binomial probability P(x is at most 4) using probability notation.
(C) How would you find the normal approximation to the binomial probability
P(x = 4) in part A? Please show how you would calculate µ and s in the formula for the normal approximation to the binomial, and show the final formula you would use without going through all the calculations.

Explanation / Answer

reposted

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.