Suppose simple random samples of size 75 were selected from a population with a mean of 56 and a variance of 12. What are the mean and standard deviation of the sampling distribution of the sample mean?
a.
and
b.
and
c.
and
d.
and
Question 2 When is the following
z-score formula used,
?
a.It gives the
z-score when dealing with a sample mean.
b.It gives the
z-score when dealing with individual values from a normal distribution.
c.It gives the
z-score when the sample mean is equal to the population mean.
d.It gives the
z-score when the standard error of the mean is equal to the population variance.
Over nearly 30 years, humans removed many polar bears for a variety of reasons, from a population in
Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta
Hominid Brain Size
Selected Vitamins: Food Sources, Functions, and Deficiency and Toxicity Symptoms (continued)
Interventions for Selected Co-Occurring Conditions
World Population Growth