Answer:
A 5 •1/2
Step-by-step explanation:
Sorry i misunderstood it for a second
The confidence interval would be (10.44, 12.16). This means that if we take repeated samples, the true mean lies in 90% of these intervals.
To find the confidence interval, we use:
We first find the z-value associated with this. To do this:
Convert 90% to a decimal: 90% = 90/100 = 0.9
Subtract from 1: 1-0.9 = 0.1
Divide by 2: 0.1/2 = 0.05
Subtract from 1: 1-0.05 = 0.95
Using a z-table (http://www.z-table.com) we see that this is directly between two z-scores, 1.64 and 1.65; we will use 1.645:
Answer:
bro just look on a caculater
Step-by-step explanation:
1087658.22
R=1/5y+3/5
5r-3=y
5r=y+3
5r/5=y+3/5
r=1/5y+3/5