Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred. A random sample of 93 adults revealed the following data. Test whether age and type of movie preferred are independent at the 0.05 level. Movie Drama Science Fiction Person's Age 24-29 yr 12 6. Row Total 34 30 18-23 yr 30-35 yr 15 12 Comedy Column Total 29 29 35 11 93 29 (a) What is the level of significance?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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(b) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.)

What are the degrees of freedom?

 

Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred. A random
sample of 93 adults revealed the following data. Test whether age and type of movie preferred are independent at the 0.05 level.
Movie
Drama
Science Fiction
Person's Age
24-29 yr
12
6.
Row Total
34
30
18-23 yr
30-35 yr
15
12
Comedy
Column Total
29
29
35
11
93
29
(a) What is the level of significance?
Transcribed Image Text:Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred. A random sample of 93 adults revealed the following data. Test whether age and type of movie preferred are independent at the 0.05 level. Movie Drama Science Fiction Person's Age 24-29 yr 12 6. Row Total 34 30 18-23 yr 30-35 yr 15 12 Comedy Column Total 29 29 35 11 93 29 (a) What is the level of significance?
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