3
answers
0
watching
160
views
30 Jul 2018
A population variable has a distribution with mean u= 50 and variance o = 225. From this population a simple random sample of n observations is to be selected and the mean of the sample values calculated. 7. How big must the sample size n be so that the standard deviation of the sample mean, , is equal to 1.4, i.e., o = 1.4? A) n= 11 B) n=161 C) n= 115
A population variable has a distribution with mean u= 50 and variance o = 225. From this population a simple random sample of n observations is to be selected and the mean of the sample values calculated. 7. How big must the sample size n be so that the standard deviation of the sample mean, , is equal to 1.4, i.e., o = 1.4? A) n= 11 B) n=161 C) n= 115
capedbaldyLv10
24 Mar 2023
astrodabberLv10
28 Feb 2023
Already have an account? Log in
Casey DurganLv2
30 Jul 2018
Already have an account? Log in
