Math Problem Statement
Find the test statistic and round to two decimal places.
Solution
To find the test statistic for this hypothesis test, we use the formula for the two-sample t-test for independent samples:
Where:
- , ,
- , ,
Let's compute the test statistic .The test statistic is approximately (rounded to two decimal places).
Would you like any additional details or have any questions?
Here are 5 related questions to explore further:
- How do you determine the degrees of freedom for this t-test?
- What is the critical t-value at a 0.01 significance level for this test?
- How would the test conclusion change if the significance level was 0.05?
- What is the interpretation of a two-tailed vs. one-tailed test in this context?
- How can we use confidence intervals to test the same hypothesis?
Tip: Always ensure that the assumptions of the t-test are met before using it, such as normality and equal variance (if applicable).
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Math Problem Analysis
Mathematical Concepts
Hypothesis Testing
Two-Sample t-Test
Statistics
Formulas
t = (X̄1 - X̄2) / sqrt((s1²/n1) + (s2²/n2))
Theorems
Two-Sample t-Test Theorem
Suitable Grade Level
College/University Statistics
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