Answer:
[143.61, 156.39]
Step-by-step explanation:
Because the population standard deviation is not available AND the sample size is less than 31, we can use a t procedure here.
Plug these values into your calculator:
Sample mean = 150
Sample size = 16
Standard deviation = 12
Confidence level = 95% = 0.95
and get [143.61, 156.39] as your confidence interval
1. 700
2. 3,900
These are the answers I found :)
8/11--------> 16
to find the total number of fish, divide 16 by 8 and multiply it by 11,
16÷8=2
2×11=22
total number of fish= 22
check,
22÷11×8=16
if you want to find the number of fish without the red stripes,
8/11--------> 16
11/11------->22
3/11--------->?
you can either subtract 16 by 22=6
or
22÷11×3=6
hope this helps......
10(6)=60
3(6.75)=20.25
6(2.75)=16.5
60+20.25+16.5=96.75