You wish to test the following claim (H,) at a significance level of a = 0.05. %3| H.:µ = 64.3 Ha:µ + 64.3 а You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 27 with a mean of M = 63 and a standard deviation of SD = 5.5. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = ± What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic
You wish to test the following claim (H,) at a significance level of a = 0.05. %3| H.:µ = 64.3 Ha:µ + 64.3 а You believe the population is normally distributed, but you do not know the standard deviation. You obtain a sample of size n = 27 with a mean of M = 63 and a standard deviation of SD = 5.5. What is the critical value for this test? (Report answer accurate to three decimal places.) critical value = ± What is the test statistic for this sample? (Report answer accurate to three decimal places.) test statistic
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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Transcribed Image Text:**Hypothesis Testing Example**
In this example, you are asked to test a statistical claim (denoted \( H_a \)) at a significance level of \( \alpha = 0.05 \).
**Hypotheses:**
- Null hypothesis (\( H_0 \)): \( \mu = 64.3 \)
- Alternative hypothesis (\( H_a \)): \( \mu \neq 64.3 \)
**Sample Details:**
- The population is assumed to be normally distributed,
- Standard deviation of the population is unknown,
- Sample size (\( n \)) = 27,
- Sample mean (\( M \)) = 63,
- Sample standard deviation (\( SD \)) = 5.5.
**Questions:**
1. **Critical Value:**
- Determine the critical value for this test with answers accurate to three decimal places.
2. **Test Statistic:**
- Calculate the test statistic for this sample with answers accurate to three decimal places.
These calculations will help you determine whether to reject or fail to reject the null hypothesis, based on the sample information and statistical methodology (e.g., t-test for unknown population standard deviation).
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