1. Which of the following is not true? a. The mean, median, and mode are equal to 0 and are located at the center of the t-distribution. b. The t-distribution, the variance is greater than 1. c. On the t-distribution, the curve never touches the x axis. d. The t-distribution is most useful for small sample sizes, when the population standard deviation is known, or both.
1. Which of the following is not true?
a. The mean, median, and
b. The t-distribution, the variance is greater than 1.
c. On the t-distribution, the curve never touches the x axis.
d. The t-distribution is most useful for small sample sizes, when the population standard deviation is known, or both.
2. What will be the degree of freedom with a t-value of 1 and a
3. Which of the following is not the characteristics of t-distribution?
a. Like the
b. Like the normal distribution, the t-distribution is symmetric. If you think about folding it in half at the mean, each side will be the same.
c. Like a standard normal distribution (or z-distribution), the t- distribution has a mean of one.
d. The normal distribution assumes that the population standard deviation is known. The t-distribution does not make this assumption
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