Homework Help is Here – Start Your Trial Now!
Math
Statistics
State the alternative hypothesis. a. Ha : σ^2 > 1.6 b. Ha : σ^2 < 1.6 c. Ha : σ^2 ≠ 1.6   2. Level of Significance. a. α = 0.1 b. α = 0.01 c. α = 0.05 d. α = 0.005   3. Critical Value/s and Rejection Region/s a. cv = 38.885 b. cv = 40.113 c. cv = 41.337

State the alternative hypothesis. a. Ha : σ^2 > 1.6 b. Ha : σ^2 < 1.6 c. Ha : σ^2 ≠ 1.6   2. Level of Significance. a. α = 0.1 b. α = 0.01 c. α = 0.05 d. α = 0.005   3. Critical Value/s and Rejection Region/s a. cv = 38.885 b. cv = 40.113 c. cv = 41.337

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 8E
See similar textbooks
icon
Related questions
Question

A researcher suggests that the variance of the ages of freshmen at a state university is greater than 1.6 as past studies have shown. A sample of 30 freshmen is selected, and the variance is found to be 2.3 years. At α=0.05, is the variation of the freshmen’s ages greater than 1.6?

 

1. State the alternative hypothesis.

a. Ha : σ^2 > 1.6

b. Ha : σ^2 < 1.6

c. Ha : σ^2 ≠ 1.6
 
2. Level of Significance.
a. α = 0.1
b. α = 0.01
c. α = 0.05
d. α = 0.005
 
3. Critical Value/s and Rejection Region/s
a. cv = 38.885
b. cv = 40.113
c. cv = 41.337
d. cv = 42.557

4. Decision Rule.

a. Reject the Null Hypothesis if x^2 < 41.337

b. Reject the Null Hypothesis if x^2 > 41.337

c. Reject the Null Hypothesis if x^2 < 42.557

d. Reject the Null Hypothesis if x^2 > 42.557

 
5. Test statistics.
a. x^2 = 40.63
b. x^2 = 41.68
c. x^2 = 42.63
d. x^2 = 43.68
 
6. Decision.
a. Reject Ho and Accept Ha
b. Accept Ho and Reject Ha
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
SEE MORE TEXTBOOKS