Answer:
what is that suppose to mean
oh wait nvm i get it now im dum
1 hr and 5 mins
srry i didnt know what elapsed meant-
Answer:




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hope it helps...
have a great day!!
Answer:
give me a minute i will answer
Step-by-step explanation:
Answer= -4
-1+-3=-4
Step by step-
Add like normal then add the sign since both numbers are negative.
3+1= 4 then add the sign
Answer:
The 99% confidence interval for the proportion of all American adults who blame Barack Obama a great deal or a moderate amount for U.S. economic problems is (0.4894, 0.5706)..
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
For this problem, we have that:

99% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 99% confidence interval for the proportion of all American adults who blame Barack Obama a great deal or a moderate amount for U.S. economic problems is (0.4894, 0.5706)..