When using the t-statistic,
A) the value of σ is known.
B) the value of σ is unknown.
C) we can directly calculate a value for σ.
D) a standard deviation is not needed.
Correct Answer:
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Q2: The denominator in the formula for
Q3: The t-distribution is used if
A) samples are
Q4: If the population standard deviation is not
Q5: Which of the following is NOT needed
Q6: The t-distribution is a _ distribution whose
Q7: The t-distribution is a family of curves.
Q8: Given a sample size of 48, the
Q9: If df is 20 for a one-sample
Q10: In comparison to the normal distribution, as
Q11: Which of the following statements is true
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