Answer: $374.50
Step-by-step explanation: $350 * 1.07 = $374.50
Answer:
x=15.58
Step-by-step explanation:
18^2 - 9^2=
= 15.58
Answer:
Are you sure you typed that correctly? If so, please retype without spaces so I can see how it is typed, because I might be doing my math wrong...
Step-by-step explanation:
9 9/23 or 9.4 (the first one is a whole number then the fraction left over)
Answer:
The 88% confidence interval for the proportion of defectives today is (0.053, 0.123)
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:

88% 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 88% confidence interval for the proportion of defectives today is (0.053, 0.123)