question archive Mark is using a one-sample t-test on the following group: Subject #15: 7
Mark is using a one-sample t-test on the following group: Subject #15: 7
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Mark is using a one-sample t-test on the following group:
Subject #15: 7.5 hours
Subject #27: 6 hours
Subject #48: 7 hours
Subject #80: 6.5 hours
Subject #91: 6.5 hours
Subject #59: 7 hours
Select the two TRUE statements.
a.) The t-distribution that Mark uses has thinner tails than a standard distribution.
b.) The value for the degrees of freedom for Mark's sample population is five.
c.) The value for the degrees of freedom for Mark's sample population is six.
d.) Mark would use the population standard deviation to calculate a t-distribution.
e.) The t-distribution that Mark uses has thicker tails than a standard normal distribution.
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Answer:
b)The value for the degrees of freedom for Mark's sample population is five.
d)Mark would use the population standard deviation to calculate a t-distribution.
Step-by-step explanation
The two TRUE statements are;
The value for the degrees of freedom for Mark's sample population is five.
Since n=6 degree of freedom df=n-1=6-1=5
Mark would use the population standard deviation to calculate a t-distribution.
Since Mark will conduct a t test to compare if there is a significant difference between population mean. Thus, population standard deviation will be needed.
