Question

1. Fill in the blank.    In a one-sample t-test, we use the _________ to estimate the population standard deviation in order to calculate the standard error.

How do you find the degrees of freedom (df) for a one-sample t-test?

a. N

b. Calculate the standard deviation of the sample

c. n-2

d. n-1

Which of the following influences the likelihood of obtaining significant results?

a. The larger your estimated standard error, the more likely it will be to get significant results.

b. None of the above are true.

c. The larger your sample size, the less likely it will be to get significant results.

d. The smaller your sample variability, the more likely it will be to get significant results.

Which of the following is true about the t-distribution?

Group of answer choices

a. It is independent of the degrees of freedom (df)

b. It has a mean of 1 and a standard deviation of 0

c. It is normally distributed

d. It is a skewed distribution

Answer 1

Answer 1: Sample standard deviation

Answer 2: n-1

Answer 3:

d. The smaller your sample variability, the more likely it will be to get significant results.

Answer 4:

c. It is normally distributed