One study of grand juries in Alameda County, California, compared the demographic characteristics of jurors with the general population, to see if the jury panels were representative.8 The results for age are shown below. The investigators wanted to know whether these 66 jurors were selected at random from the population of Alameda County. (Only persons 21 and over are considered; the county age distribution is known from Public Health Department data.) Fill out the last column below. All of your answers hould be accurate to the tenth digit, for example 4.8. The value of χ2 is [E]. Your answer should be an integer with no decimals.  The degrees of freedom is [F].  Check that the p-value is essentially zero from the table.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter78: Computing Angles Made By The Intersection Of Two Angular Surfaces
Section: Chapter Questions
Problem 5A
icon
Related questions
Question
   
 

One study of grand juries in Alameda County, California, compared the demographic characteristics of jurors with the general population, to see if the jury panels were representative.8 The results for age are shown below. The investigators wanted to know whether these 66 jurors were selected at random from the population of Alameda County. (Only persons 21 and over are considered; the county age distribution is known from Public Health Department data.)

Fill out the last column below. All of your answers hould be accurate to the tenth digit, for example 4.8.

The value of χ2 is [E]. Your answer should be an integer with no decimals. 

The degrees of freedom is [F]

Check that the p-value is essentially zero from the table. 

 

(True or False) With simple random sampling, it is almost impossible for a jury to differ this much from the county age distribution. The inference is that grand juries are not selected at random. Write true or false. [G]

of expected
County-wide number
percentage jurors
Age
number
of
jurors
21 to 40
42
41 to 50
23
51 to 60
16
19
61 and
over
19
33
total
100
66
The value of x2 is . Your answer should be an
integer with no decimals.
The degrees of freedom is .
LO
Transcribed Image Text:of expected County-wide number percentage jurors Age number of jurors 21 to 40 42 41 to 50 23 51 to 60 16 19 61 and over 19 33 total 100 66 The value of x2 is . Your answer should be an integer with no decimals. The degrees of freedom is . LO
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill