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Determine key characteristics of a t-distribution. Miriam is using a one-sample t-test on the following group: Subject #15: 6.5 hours Subject #27: 5 hours Subject
Determine key characteristics of a t-distribution.
Miriam is using a one-sample t-test on the following group:
Subject #15: 6.5 hours
Subject #27: 5 hours
Subject #48: 6 hours
Subject #80: 7.5 hours
Subject #91: 5.5 hours
Select the two TRUE statements.
- a.)The value for the degrees of freedom for Miriam's sample population is four.
- b.)The value for the degrees of freedom for Miriam's sample population is five.
- c.)The t-distribution that Miriam uses is taller and has thinner tails than a normal distribution.
- d.)Miriam needs to use a t-test when the standard deviation is known.
- e.)The t-distribution that Miriam uses is shorter and has thicker tails than a normal distribution.
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