(c) Consider a hypothesis test about two proportions, Ho: P1 = P2 versus Ha: pi # p2. If the alternative hypothesis Ha is true, increasing the size of the two samples would tend to the absolute value of the test statistic and the p-value. The two blanks should be (i) increase; increase (ii) increase; decrease (iii) decrease; increase (iv) decrease; decrease
(c) Consider a hypothesis test about two proportions, Ho: P1 = P2 versus Ha: pi # p2. If the alternative hypothesis Ha is true, increasing the size of the two samples would tend to the absolute value of the test statistic and the p-value. The two blanks should be (i) increase; increase (ii) increase; decrease (iii) decrease; increase (iv) decrease; decrease
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![**Example Question: Statistical Hypothesis Testing**
**Consider a hypothesis test about two proportions, H₀: p₁ = p₂ versus Hₐ: p₁ ≠ p₂. If the alternative hypothesis Hₐ is true, increasing the size of the two samples would tend to ________ the absolute value of the test statistic and ________ the p-value. The two blanks should be:**
(i) increase; increase
(ii) increase; decrease
(iii) decrease; increase
(iv) decrease; decrease
In hypothesis testing, when the sample size increases, the precision of the test improves. Assuming the alternative hypothesis \( H_a \) is true, typically we would expect:
1. **Absolute Value of Test Statistic**: As the sample size increases, the test statistic, which measures the degree of deviation from the null hypothesis, becomes more extreme (i.e., the absolute value increases).
2. **p-value**: The p-value, which indicates the probability of observing the test results under the null hypothesis, typically decreases with a larger sample size in the presence of a true effect.
Thus, the correct choice is (ii) **increase; decrease**.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe35d795b-3b3a-45a5-a595-ba94ec33b836%2F5b63ed78-e30f-4c0d-ae70-e4fcef53f04a%2Fff8iygq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Example Question: Statistical Hypothesis Testing**
**Consider a hypothesis test about two proportions, H₀: p₁ = p₂ versus Hₐ: p₁ ≠ p₂. If the alternative hypothesis Hₐ is true, increasing the size of the two samples would tend to ________ the absolute value of the test statistic and ________ the p-value. The two blanks should be:**
(i) increase; increase
(ii) increase; decrease
(iii) decrease; increase
(iv) decrease; decrease
In hypothesis testing, when the sample size increases, the precision of the test improves. Assuming the alternative hypothesis \( H_a \) is true, typically we would expect:
1. **Absolute Value of Test Statistic**: As the sample size increases, the test statistic, which measures the degree of deviation from the null hypothesis, becomes more extreme (i.e., the absolute value increases).
2. **p-value**: The p-value, which indicates the probability of observing the test results under the null hypothesis, typically decreases with a larger sample size in the presence of a true effect.
Thus, the correct choice is (ii) **increase; decrease**.
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