Is achieving a basic skill level related to the location of the school? The results of a random sample of students by the location of school and the number of students achieving basic skill levels in three subjects is shown in the contingency table. At a = 0.01, test the hypothesis that the variables are independent. Complete parts (a) through (d).

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 9E
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(c) Calculate the test statistic.

d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.

Subject
Location Reading Math Science
Is achieving a basic skill level related to the location of the school? The results of a random sample of students by the location of school and the number of students achieving
basic skill levels in three subjects is shown in the contingency table. At a = 0.01, test the hypothesis that the variables are independent. Complete parts (a) through (d).
Urban
50
43
42
Suburban
66
68
50
(a) Identify the claim and state the null and alternative hypotheses.
Họ: Skill level in a subject is independent of location.
Ha: Skill level in a subject is dependent on
location.
The null hypothesis
is the claim.
(b) Determine the degrees of freedom, find the critical value, and identify the rejection region.
What are the degrees of freedom?
d.f. = 2
Find the critical value.
x3
= 9.210
(Round to three decimal places as needed.)
Chonn tha arrent roinntion rosion holow.
Enter your answer in the answer box and then click Check Answer.
Transcribed Image Text:Subject Location Reading Math Science Is achieving a basic skill level related to the location of the school? The results of a random sample of students by the location of school and the number of students achieving basic skill levels in three subjects is shown in the contingency table. At a = 0.01, test the hypothesis that the variables are independent. Complete parts (a) through (d). Urban 50 43 42 Suburban 66 68 50 (a) Identify the claim and state the null and alternative hypotheses. Họ: Skill level in a subject is independent of location. Ha: Skill level in a subject is dependent on location. The null hypothesis is the claim. (b) Determine the degrees of freedom, find the critical value, and identify the rejection region. What are the degrees of freedom? d.f. = 2 Find the critical value. x3 = 9.210 (Round to three decimal places as needed.) Chonn tha arrent roinntion rosion holow. Enter your answer in the answer box and then click Check Answer.
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