If a sample has 25 observations and a 99% confidence estimate for μ is needed, the appropriate value of the t-multiple required is . Place your answer, rounded to 3 decimal places, in the blank. For example, 3.456 would be an appropriate entry.
1 answer:
Answer:
Two tailed t = 2.797
One tailed t = 2.492
Step-by-step explanation:
The t-value can be defined as the ratio of the difference between the mean of the two sample sets and the difference that exists within the sample sets.
t at 99% confidence interval. For;
degree of freedom df = 25-1 = 24
Two sided test
t ( 99% +1/2% = 99.5)
Check t at 0.995 df = 24
t = 2.797
One tail test
t ( at 0.990) df = 24
t = 2.492
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