Answer:
82.5% Americans owned a TV also owned a DVD player .
Step-by-step explanation:
Formula

As given
Of the 114.2 million Americans who owned a TV, 94.2 million also owned a DVD player.
Here
Part value = 94.2 million
Total value = 114.2 million
Putting all the values in the formula



Percentage = 82.5 %
Therefore 82.5% Americans owned a TV also owned a DVD player .
Answer: 1.960
Step-by-step explanation:
The value of z we use to calculate a confidence interval with a (
) confidence level is a two-tailed test value i.e. represented by :-

Given : The level of confidence: 
Then, significance level : 
With the help of standard normal distribution table for z , we have

Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960
Answer:
10 hours
Step-by-step explanation:
If I have $50 in my bank account, and I want to have a total of $130 in my account. It means that I need to work enough hours to make $130 - $50 = $80.
If I make $8 per hour, and I need to make $80, then I just have to work 10 hours. ($80/8 = 10)
1mm:1m
since its just one to one, thats the ratio
Answer:
sdf
Step-by-step explanation: