It makes a difference whether or not we know the population variance because
a. we cannot deal with situations in which the population variance is not known.
b. we have to call the result t if the population variance is used.
c. we have to call the result z if the population variance is not used.
d. we have to call the result t if the sample variance is used.
Question 2
If the population from which we draw samples is rectangular, then the sampling distribution of the mean will be
a. rectangular.
b. normal.
c. bimodal.
d. more normal than the population.
Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds
Predators and Population Cycles
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
The Distribution of the World's Land and Population
Population and Settlement
A graphic depiction of predisposing alleles characteristic of a threshold trait within a population,