Question
) A researcher predicts that showing a certain film will change people's attitudes toward alcohol. The researchers then randomly select 36 people, show them the
) A researcher predicts that showing a certain film will change people's attitudes toward alcohol. The researchers then randomly select 36 people, show them the film, and give them an attitude questionnaire. The mean score on the attitude questionnaire for this sample of people is 70. In the generalpopulation, the average score for people on this test is 75, with a standard deviation of 12 (assume the alpha level = .05).
a. Identify the independent variable.
b. Identify the dependent variable.
c. In a sentence, state the null hypothesis.
d. Using symbols, state the null hypothesis.
e. Using symbols, state the alternative hypothesis.
f. Conduct the hypothesis test using a two- tailed test with alpha = .05.
g. What is your conclusion regarding the null hypothesis? Should you reject or fail to reject the null hypothesis?
h. What can you conclude about the film and attitudes toward alcohol based on your hypothesis test results?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started