Answer:
The answer is 4
Step-by-step explanation:


×8
=+4
Answer:
(0, 0)
Step-by-step explanation:
Origin is the center of the coordinate plane which is located where the x-axis and y-axis meet
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Answer:
The lower bound for a 90% confidence interval for the percentage of all American adults who believe in ghosts is 0.3549
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:

90% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The lower bound for a 90% confidence interval for the percentage of all American adults who believe in ghosts is 0.3549
Answer:
x = -16
5x = -80
1. divide 5 on both sides.
2. x = -16