Answer:
69.7
Step-by-step explanation:
Add both angles 43+26.7
Answer:
The 99% confidence interval would be given by (0.286;0.562)
Step-by-step explanation:
Information given:
represent the families owned at least one DVD player
represent the total number of families
represent the estimated proportion of families owned at least one DVD player
In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 99% of confidence, our significance level would be given by 
and 
. And the critical value would be given by:
The confidence interval for the mean is given by the following formula:
If we replace the values obtained we got:
The 99% confidence interval would be given by (0.286;0.562)
Answer:
the answer should be 9 1 /3 for the value of t because first of all you need to do the following steps.
_t+1__= 2 7/12
4
_t+1__= 31/12
4
then you multiplied it by 4 each side getting an answer of for this step
t+1= 31/3
then you need to subtract 1 from each side because if its add then the opposite of its subtract.
==> t+1-1= 31/3 -1
===> t= 28/3 and you simplified it as 9 1/3 so that is the correct and have a great day.
Step-by-step explanation:
Is 20000000 all do is add another zero ^_^
