Asked by Tristan Fetro on Jul 18, 2024
Verified
A researcher collects data from a group of 25 people at Time 1 and Time 2. Assuming α = .05 (two-tailed) , the critical value is ______.
A) 2.064
B) 2.069
C) 2.492
D) 2.797
Critical Value
A point on the test distribution that is compared with the test statistic to determine whether to reject the null hypothesis.
Alpha
The level of significance in statistical testing, representing the probability of rejecting the null hypothesis when it is actually true.
- Ascertain and employ the correct critical values for t-tests according to the size of the sample and the significance levels.
Verified Answer
AB
Albert BankoleJul 21, 2024
Final Answer :
A
Explanation :
The critical value for a two-tailed test with α = .05 and degrees of freedom (df) close to 25 (since df = n - 1 for a paired sample, here df = 24) is approximately 2.064 according to the t-distribution table.
Learning Objectives
- Ascertain and employ the correct critical values for t-tests according to the size of the sample and the significance levels.
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