Author Question: Which of the following distributions has a smaller variance? a.Graph B b.The graphs both ... (Read 132 times)

appyboo · **on:** Jun 24, 2018

Which of the following distributions has a smaller variance?

a.Graph B
b.The graphs both have the same variance.
c.Graph A
d.It cannot be determined from the graphs given.

Question 2

Assume the distribution of annual vacation days used by employees at a large corporation is normally distributed with an unknown standard deviation

. If a sample of 100 employees has a sample mean

and a sample standard deviation s = 12.5, what is the estimated standard error of

?

a.12.5
b.1.25
c.1.56
d.0.125

kjo;oj · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

correct: c

Answer to Question 2

correct: b

appyboo · **Reply 2 on:** Jun 24, 2018

Thanks for the timely response, appreciate it

mochi09

Wow, this really help