Answer: 
Step-by-step explanation:
The confidence interval for population mean is given by :-
, where 
is the sample proportion, n is the sample size , 
is the critical z-value.
Given : Significance level : 
Sample size : n= 85
Critical value : 
Sample proportion: 
Now, the 99% confidence level will be :
Hence, the 99% confidence interval estimate of the true proportion of families who own at least one DVD player is
Answer:
13.05MbpS < x < 22.15 Mbps
Step-by-step explanation:
Confidence interval CI can be expressed in the form;
Lower bound < x < upper bound
Given;
CI = (13.046, 22.15)
Lower bound = 13.046 = 13.05 Mbps (to two s.f.)
Upper bound = 22.15 Mbps
So, the Confidence interval is given as;
13.05 MbpS < x < 22.15 Mbps
Answer:
60
Step-by-step explanation:
12 can be broken into 3*4
15 = 5*3
The least factors are
3*4*5 = 60
The lowest common denominator is 60
Answer:
Physical activy used for pleasure.
Step-by-step explanation:
It's just a meaning so I can't provide an explanation.
