1. The highest point of a skewed distribution curve occurs at
_________.
a. mean
b. median
c. mode
d. None
2. If the mean of a normal distribution is negative, which of
the following statement can be applied __________.
a. the standard deviation must also be negative
b. the variance must also be negative
c. a mistake has been made in the computations because the mean
of a normal distribution cannot be negative
d. the standard deviation is always positive.
3. The standard deviation of the sampling distribution is also
referred to as the _______.
a. standard x
b. standard error of the mean
c. sample standard mean
d. sample mean deviation
4. The standard deviation of a sampling distribution also called
“standard error”, is an estimate of __________.
a. sample standard deviation
b. sample statistic
c. point estimate
d. population standard deviation
5. The purpose of statistical inference, from a sample
data, is to provide information about the _________.
a. sample based upon information contained in the population
b. population based upon information contained in the sample
c. population based upon information contained in the
population
d. mean of the sample based upon the mean of the population