SAT College

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 value for the degrees of freedom for Mark's sample population is six.
b.)
The t-distribution that Mark uses has thinner tails than a standard distribution.
c.)
Mark would use the population standard deviation to calculate a t-distribution.
d.)
The t-distribution that Mark uses has thicker tails than a standard normal distribution.
e.)
The value for the degrees of freedom for Mark's sample population is five.

Answers

Answer 1

Answer: The answer is A and D.

Explanation: I

just did this question!

Answer 2

The value for the degrees of freedom for Mark's sample population is six. The t-distribution that Mark uses has thicker tails than a standard normal distribution. The correct options are A and D.

What is a t-test?

When the population standard deviation is unknown, the student's t-test is a statistical tool for assessing assumptions about the mean of a small sample taken from a normally distributed population.

A statistical test called a t test is employed to compare the means of two groups. It is frequently employed in hypothesis testing to establish whether a procedure or treatment truly affects the population of interest or whether two groups differ from one another.

Using a one-sample t-test, Mark Six is the number of degrees of freedom that apply to Mark's sample population. Mark employs a t-distribution, which has thicker tails than a typical normal distribution.

Thus, the correct options are A and D.

For more details regarding t-test, visit:

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Does anyone know how to solve this

Answers

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It’s A, (-1.0) on the x-axis
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