N = .6(savings)r remainder = .4(savings) n/r =.6s/.4sn/r = 1.5n = 1.5r
Answer: 0.17 ± 0.096
Step-by-step explanation:
Confidence interval for difference between the population proportion :

, where
= sample proportion for population 1.
= sample proportion for population 2.
= Sample size from population 1.
= Sample size from population 1.
As per given , we have
Population


Critical z-value for 99% confidence level is z*=2.576 [By z-table]
Now , the 99% confidence interval estimate for the difference between the percentages of men and women who prefer Coca Cola over Pepsi :
\
Hence, the correct answer is 0.17 ± 0.096.
<em>Complete Question:</em>
<em>You plant an 8-inch spruce tree that grows 4 inches per year and a 14-inch hemlock tree that grows 6 inches per year. </em>
<em>The initial heights are shown. </em>
Write a system of linear equations that represents this situation.
Answer:


Step-by-step explanation:
Given
Spruce Tree (s):

(yearly)
Hemlock Tree (h):

(yearly)
Required
Represent as system of linear equations
Let the number of years be x.
In both cases, the equation can be formed using:

For Spruce Tree (s):


For Hemlock Tree (h):


<em>Hence, the equations are </em>
<em> and </em>
<em></em>
I believe the answer is x-5 y-15